![\"logo\"](\"https://raw.githubusercontent.com/pirix-gh/ts-toolbelt/master/.github/logo.png\" "\\"ts-toolbelt\\""){kind=logo}
\n \n\n \n \n \n \n\n
\n ๐ท Higher type safety for TypeScript\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n .\n ๐ค Ask Questions\n
\n \n ![](\"https://img.shields.io/gitter/room/ts-toolbelt/community.svg\")
\n \n \n ![](\"https://img.shields.io/npm/v/ts-toolbelt.svg\")
\n \n \n ![](\"https://img.shields.io/travis/pirix-gh/ts-toolbelt.svg\")
\n \n \n ![](\"https://img.shields.io/npm/dm/ts-toolbelt.svg\")
\n \n \n ![](\"https://img.shields.io/badge/PRs-welcome-brightgreen.svg\"){kind=icon}
\n \n \n ![](\"https://img.shields.io/npm/l/ts-toolbelt.svg\")
\n \n
\n ![](\"https://raw.githubusercontent.com/pirix-gh/ts-toolbelt/master/.github/demo.gif\")
\n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nThis is important, the lowest TypeScript version that is [supported](#-compatibility) is 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/wiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n2. Fork the project\n3. Clone your fork\n4. Create a pr/**feature** branch\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n ```sh\n git commit -m 'Added this CoolFeature'\n ```\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n ```sh\n git push origin pr/CoolFeature\n ```\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n .\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nThis is important, the lowest TypeScript version that is [supported](#-compatibility) is 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/wiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n2. Fork the project\n3. Clone your fork\n4. Create a pr/**feature** branch\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n ```sh\n git commit -m 'Added this CoolFeature'\n ```\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n ```sh\n git push origin pr/CoolFeature\n ```\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n .\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nThis is important, the lowest TypeScript version that is [supported](#-compatibility) is 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/wiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n2. Fork the project\n3. Clone your fork\n4. Create a pr/**feature** branch\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n ```sh\n git commit -m 'Added this CoolFeature'\n ```\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n ```sh\n git push origin pr/CoolFeature\n ```\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n .\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nThis is important, the lowest TypeScript version that is [supported](#-compatibility) is 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/wiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n2. Fork the project\n3. Clone your fork\n4. Create a pr/**feature** branch\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n ```sh\n git commit -m 'Added this CoolFeature'\n ```\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n ```sh\n git push origin pr/CoolFeature\n ```\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n .\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nThis is important, the lowest TypeScript version that is [supported](#-compatibility) is 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/wiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n2. Fork the project\n3. Clone your fork\n4. Create a pr/**feature** branch\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n ```sh\n git commit -m 'Added this CoolFeature'\n ```\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n ```sh\n git push origin pr/CoolFeature\n ```\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nThis is important, the lowest TypeScript version that is [supported](#-compatibility) is 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/wiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n2. Fork the project\n3. Clone your fork\n4. Create a pr/**feature** branch\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n ```sh\n git commit -m 'Added this CoolFeature'\n ```\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n ```sh\n git push origin pr/CoolFeature\n ```\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nThis is important, the lowest TypeScript version that is [supported](#-compatibility) is 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/wiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n2. Fork the project\n3. Clone your fork\n4. Create a pr/**feature** branch\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n ```sh\n git commit -m 'Added this CoolFeature'\n ```\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n ```sh\n git push origin pr/CoolFeature\n ```\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nThis is important, the lowest TypeScript version that is [supported](#-compatibility) is 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/wiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n2. Fork the project\n3. Clone your fork\n4. Create a pr/**feature** branch\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n ```sh\n git commit -m 'Added this CoolFeature'\n ```\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n ```sh\n git push origin pr/CoolFeature\n ```\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nThis is important, the lowest TypeScript version that is [supported](#-compatibility) is 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/wiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n2. Fork the project\n3. Clone your fork\n4. Create a pr/**feature** branch\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n ```sh\n git commit -m 'Added this CoolFeature'\n ```\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n ```sh\n git push origin pr/CoolFeature\n ```\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nThis is important, the lowest TypeScript version that is [supported](#-compatibility) is 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/wiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n2. Fork the project\n3. Clone your fork\n4. Create a pr/**feature** branch\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n ```sh\n git commit -m 'Added this CoolFeature'\n ```\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n ```sh\n git push origin pr/CoolFeature\n ```\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nThis is important, the lowest TypeScript version that is [supported](#-compatibility) is 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/wiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n2. Fork the project\n3. Clone your fork\n4. Create a pr/**feature** branch\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n ```sh\n git commit -m 'Added this CoolFeature'\n ```\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n ```sh\n git push origin pr/CoolFeature\n ```\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nThis is important, the lowest TypeScript version that is [supported](#-compatibility) is 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/wiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n2. Fork the project\n3. Clone your fork\n4. Create a pr/**feature** branch\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n ```sh\n git commit -m 'Added this CoolFeature'\n ```\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n ```sh\n git push origin pr/CoolFeature\n ```\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nThis is important, the lowest TypeScript version that is [supported](#-compatibility) is 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/wiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n2. Fork the project\n3. Clone your fork\n4. Create a pr/**feature** branch\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n ```sh\n git commit -m 'Added this CoolFeature'\n ```\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n ```sh\n git push origin pr/CoolFeature\n ```\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n ![](\"https://img.shields.io/badge/Conventional%20Commits-1.0.0-yellow.svg\"){kind=icon}
\n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the\n tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n\n Make sure that you follow the [conventional commit](https://conventionalcommits.org) specs or you won't be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the\n tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n\n Make sure that you follow the [conventional commit](https://conventionalcommits.org) specs or you won't be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the\n tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n\n Make sure that you follow the [conventional commit](https://conventionalcommits.org) specs or you won't be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the\n tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n\n Make sure that you follow the [conventional commit](https://conventionalcommits.org) specs or you won't be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the\n tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n\n Make sure that you follow the [conventional commit](https://conventionalcommits.org) specs or you won't be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the\n tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n\n Make sure that you follow the [conventional commit](https://conventionalcommits.org) specs or you won't be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the\n tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n\n Make sure that you follow the [conventional commit](https://conventionalcommits.org) specs or you won't be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the\n tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n\n Make sure that you follow the [conventional commit](https://conventionalcommits.org) specs or you won't be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the\n tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n\n Make sure that you follow the [conventional commit](https://conventionalcommits.org) specs or you won't be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the\n tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n\n Make sure that you follow the [conventional commit](https://conventionalcommits.org) specs or you won't be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the\n tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n\n Make sure that you follow the [conventional commit](https://conventionalcommits.org) specs or you won't be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the\n tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n\n Make sure that you follow the [conventional commit](https://conventionalcommits.org) specs or you won't be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n1. [Read the\n tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n5. Commit your changes\n\n Make sure that you follow the [conventional commit](https://conventionalcommits.org) specs or you won't be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n7. Commit your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท Higher type safety for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175**\ntested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of\n**features** to TypeScript. It uses the type system itself for TypeScript to\ncompute more complex types. In other words, its API exposes types that trade\n**CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**(boolean) | **C**(lass) | **F**(unction) | **I**(teration) | **N**(umber) |\n| **O**(bject) | **O**(bject).**P** | **S**(tring) | **T**(uple) | **U**(nion) | Test |\n\n**The documentation is complete but needs more examples**. So feel free to [ask for\nexamples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md),\nand I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get\nyou on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your\nquestions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to\nlearn, inspire, and create. Any contributions you make are **greatly appreciated**.\nThere are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** Match the type you need to operate on to the categories right above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**(ny) | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n ![](\"https://raw.githubusercontent.com/pirix-gh/ts-toolbelt/master/.github/issuehunt-logo.svg?sanitize=true\"){kind=logo}
\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n[](https://greenkeeper.io/)\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n[](https://greenkeeper.io/)\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n ![](\"https://badges.greenkeeper.io/pirix-gh/ts-toolbelt.svg\")
\n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n Get Professional Support\n \n
\n\n\n## Table of Contents\n\n* [๐ About](#-about)\n* [๐ฉ Features](#-features)\n* [๐ Getting started](#-getting-started)\n* [๐ Documentation](#-documentation-)\n* [๐ง Good to know](#-good-to-know-)\n* [๐ Contributing](#-contributing)\n* [๐ Sponsoring issues](#-sponsoring-issues)\n* [๐ Running tests](#-running-tests)\n* [๐ง Compatibility](#-compatibility)\n* [๐ฎ What's next](#-whats-next)\n* [๐ Acknowledgements](#-acknowledgements)\n\n## ๐ About\n\n**ts-toolbelt** completes TypeScript with a collection of more than **175** tested types. This makes it the biggest type collection out there.\n\nIt's goal is to improve type correctness while adding a whole new set of **features** to TypeScript. It uses the type system itself for TypeScript to compute more complex types. In other words, its API exposes types that trade **CPU & RAM** for higher type safety.\n\n#### Goals\n\n* Answer the question to **\"How do I do this in TypeScript?\"**\n* Software that's more type-safe, **flexible** & more **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Types can be **combined** together to create new ones!\n* This package aims to be the home of all **utility types**\n* Computed types are always **readable**, like if you typed it\n* High [**performance**](https://gist.github.com/pirix-gh/02097996d2a1e4e7aa2d54b330451ea0), so it will not bloat TS (~ +2sec, +50MB)\n\n## ๐ฉ Features\n\nHere's some of the most useful features:\n\n* [Merge two types together](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html#merge)\n* [Update the field of a type](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html#update)\n* [Make some fields optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html#optional)\n* [Change a type at any depth!](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html#update)\n* [Concat two tuples together](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html#concat)\n* [Get the last item of a tuple](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_last_.html#last)\n* ... and so much more\n\n\n \n
\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n \n ![](\"https://raw.githubusercontent.com/pirix-gh/ts-toolbelt/master/.github/tidelift.png\")
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\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
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\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
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\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nHere you can find the documentation for each specific version.\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> Example: https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n ![](\"https://raw.githubusercontent.com/pirix-gh/ts-toolbelt/master/.github/issuehunt.png\")
\n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n git push origin pr/CoolFeature\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at version 3.5\n\n```sh\nnpm install typescript@^3.5.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n โก TypeScript, unleashed\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ท All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n// Wonder what these letters mean? Check the docs below\n\n// Merge two `object` together\ntype merge = O.Merge<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ผ For enterprise\n\nAvailable as part of the Tidelift Subscription.\n\nThe maintainers of `ts-toolbelt` and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. [Learn more.](https://tidelift.com/subscription/pkg/npm-ts-toolbelt?utm_source=npm-ts-toolbelt&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)\n\n## ๐ Sponsoring issues\n\n**Sponsored issues have higher priority over non-critical issues**. \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Improve with user feedback\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {A, B, C, F, I, N, O, S, T, U, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Improve with user feedback\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"0182a000a70b2fd4752cea297bc028d55f18a159","readme":"\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"e2e5582aa10432a725588e0aae93c27a4f792cb9","readme":"\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n**The money will be transparently split with an issue's assignees.**\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n
\n\nYou can either request a new feature or a bug fix then fund it.\n\n\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"729fbfba28aa8ea2468c9ef28963da8fb8ff3afe","readme":"\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.9.2-test.1572175447561","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-jx8ZzFJu31Ie5+Z4Wj4V0ovPaJkYOg84sPE+1QzTT3rvggsN7dcluQo9G0O8oxZZcBDpggH3kE+A7b4xtFz2yQ==","shasum":"8efa2a335855897d89c1ec3ebdba693625a6060e","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.9.2-test.1572175447561.tgz","fileCount":6,"unpackedSize":261617,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n\r\nwsFcBAEBCAAQBQJdtX5gCRA9TVsSAnZWagAAQfwQAI9FLQVX1sa9AZtArndJ\n8J5IVDIb2oyW+EnschHDSz5ZqqqQfXbzNgmi0TiQej3KHiEvJhbfRRR7jzkq\nX2V01TX+hrKyNYK46+hraCqnjKnlYkrRpGKe+75RPSQc0peH7TSWuUD9JfHu\nhexAA9+zBRHMCa9j1KZvwns8sX4smbx4xni4+Cm92PN5sVPZD4lDQmKLGIfG\nFErw8rJZhpONeYFO3r2WkZP2wKTQo9hsYuOjxwLLS2QNBF81Qz7mKLkCqaGz\nYXE5rw4mmAgfOs/Y/LjrNKrLcE4X5xkQmVj9woGQUuAIWIMYXV0Czflophb+\nFKG/6A4iNgKJytZWUq8xau3eKNHB3XvM2u2tPB6hHgOKthtOBCopslv4tzQ8\nIeMs2pDKLZ+twAHZutfBnhbSncVt953lc066eJgN/KB58Q4pUq2bpYI+Z3nX\nVHTRY3DshqgiiLDSPZesG4Y4YicBmB7tTZFwvOiLHxnsPvKOOqE3X4KVYsVp\n/c2MgODgMh3emOnZbu/Pu1HxVVB33GQGx3G4cICIXgP6kROtg1bDhetdlD/4\n/mLn3CH8NCYNUtGJoHcrzv2TlQxNiELyjdGLYSJjnpaiyvDFaBZjPIHEgz+u\nGc0Lo6riZDRPtpEofQBM+HE39h5YaFy83wAypuh3ZujOi4H1KTwSRkQ0Pq7Z\n22Zo\r\n=e92O\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEQCIE3mb5wk4AiP2I7rg3FMZaSWIA+zM2ymcSwgJEhzd/AFAiBs/rmi/xReS45ydMvv0s+S8T/j1bMvoXzjmEhJUffZFw=="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.9.2-test.1572175447561_1572175455999_0.7758537896755464"},"_hasShrinkwrap":false},"4.9.3-test.1572197436263":{"name":"ts-toolbelt","version":"4.9.3-test.1572197436263","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"1b7eb4115ba89bcc437357a8b0941f4db85ee269","readme":"\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import * as tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.9.3-test.1572197436263","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-dHgsjQTVSW++0gebZ7S063PUDXai8O0pQQn0fYA69fNFQRMpDyxEXXbw//TogrrOsXq5Cr78b7nPTIJY9P29FQ==","shasum":"3f6bdf9c3bbbc0a8a932f147f9ca689a5e62a40b","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.9.3-test.1572197436263.tgz","fileCount":7,"unpackedSize":261934,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\n+DEk\r\n=gN+j\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEQCIQCAmGrVcHI0cagxUcwYvtaVKSDpGaHwZufaUAVNsvgTUwIfE95dcjIpVZ2vF2TA+uvPCT/nuatxPuLODhY+NVL2Xg=="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.9.3-test.1572197436263_1572197444352_0.1480696622678499"},"_hasShrinkwrap":false},"4.9.3":{"name":"ts-toolbelt","version":"4.9.3","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"1b7eb4115ba89bcc437357a8b0941f4db85ee269","readme":"\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import * as tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.9.3","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-Rq7C6JorhrZnRwg/SZNOEdrdSLv6wz8zZJrr/4xiQ5tQ1DQ4m5klnlzzq3GxWRNrgoxi3EQwavV9ofU5zefeew==","shasum":"eb8c4dfbf58f3048f124fcdea642fb8b1c99afcb","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.9.3.tgz","fileCount":8,"unpackedSize":261915,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\naCog\r\n=Aer4\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIQDCwTjvmA+YgMGVgakGrvnYDx9oEajNKJVCVf/W2Ou47wIgf46rbInt1RKVhaKglZN+Jca7uP92W3LVhqT11elpZKQ="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.9.3_1572197680574_0.46384037889126817"},"_hasShrinkwrap":false},"4.9.3-test.1572197942207":{"name":"ts-toolbelt","version":"4.9.3-test.1572197942207","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"1b7eb4115ba89bcc437357a8b0941f4db85ee269","readme":"\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import * as tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.9.3-test.1572197942207","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-0o+W6GBsxjsV9zvlpGrhw+TVcIoU6RWfxGvtE6pB/RSerXykPP4P6U/zGF7gfF93XLGUopDYmmOjvXqgm5l4Xg==","shasum":"b2c937213762bf6a77968483db6be7a9255567a8","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.9.3-test.1572197942207.tgz","fileCount":7,"unpackedSize":261934,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nG9k4\r\n=a5UK\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIQCSPfw260OgDCo7+E8KLyB7TE2njFnq+msJL5Y3hx3A5gIgIaMBKxDwuzZtqgpuanw+e4ZtGQZVgMbvtMU5G54y+CI="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.9.3-test.1572197942207_1572197951742_0.09812889271517311"},"_hasShrinkwrap":false},"4.9.4-test.1572198210185":{"name":"ts-toolbelt","version":"4.9.4-test.1572198210185","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"621b1fc4ed5dce6126773b5662b825f60ed146b0","readme":"\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import * as tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"566ac058eb3e473b2d62183b68ec942fff11bc5f","readme":"\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import * as tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.9.5-test.1572199212121","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-Kfv8h/fL83A5byKEArBHQFc+HCWQad8jFHLpdNWxhNWzXRABJeOejkmdXONqq1IikQuRYw8v/9dC+hr1XGS0aQ==","shasum":"7f9c6beae1a7acd1fcacc043c9965e5c261100cd","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.9.5-test.1572199212121.tgz","fileCount":8,"unpackedSize":262504,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n\r\nwsFcBAEBCAAQBQJdtds0CRA9TVsSAnZWagAAf30P+gLgqlw5DF2d6d5Hc1ze\nVMLSoH0xCyQaIy4ehc8/JvQPllruGTCy/+Dywp7gC4Biapf+jjln6+xLIeWY\nZl7hVCoNg0vxMNHUT0n8xlCu4+XyKciHkjZs6E1Zs+4YqSRrfU+Qriy8cJzU\nqP5CcSk7Lf6yQJMmmrO0tFymKTtJji7cMUy9RzqNuOLMBxReOhAyS7zLVUfb\nL1/JGLvcGlbelFzD1hVMUCCFUy51WcdT11VelLJ6r2o/RH8/wfZYqgaagCk2\nWydq7g1e14HypKBvIcXF4x2P/CrYUYgb/CM9Zci7EBcMxS3DpVCRY5mlRyI0\ncBDm3l0ss0mVx0z2wGBbHE7+WOxiUzPJmxWzsHbN36rel/ZvynmFlmq6pMJa\nlXlloj2Py4k8J+6BZAeiXDqUWCAzR5Ij+iDP3fV9/WVOhYLpzRijrGRAokob\nyPkSeEqqPBDyVHyojUAyRTuZM3N1Opt6SYOBMY99kCkUjvY/UNlC2ql4+J1Z\nAk3w8oU+oEALmZLPyNbR/pUdEF+TpbhcZSex5DnVU9f3nde/pasRhIai6JK3\n2QphHl6rk7n5l918FY7/YXykuIMGCoWucWL4A0S0sszkDhTBBfDiGc1awsTK\nbcyDYHXv0skWHShYeyDykfUR2tvhMc+rUN6Mnw/e/DY+tEUAzCHUfm2o9nIm\ni4zI\r\n=oMHr\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIE/VAN80iW0KDFaJXl7Jo7xX/NOdrSCBwtURRb6kiEB1AiEA8/NYNKjqTwWI2WddV4UBYy5/z+L2Ki4UjxnwRI/0bKc="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.9.5-test.1572199212121_1572199220335_0.5327108535733274"},"_hasShrinkwrap":false},"4.9.5":{"name":"ts-toolbelt","version":"4.9.5","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"566ac058eb3e473b2d62183b68ec942fff11bc5f","readme":"\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import * as tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.9.5","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-y+Isng1TR10TaEfM2+cP+2Si8oBBfAw1N8cPDKeoylN4C+BQrUba4lLWoNA5j9eY7CvUT3iOr/CPwsAZybqmZQ==","shasum":"3c087322f12676702f96ae463b973c56e6502129","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.9.5.tgz","fileCount":8,"unpackedSize":262485,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nRA8u\r\n=28Pa\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIBvJFF0537BRtZHnwmctMcEgqbwVwQjmPqhzFMhEDUBYAiEAy34TXvqWJLIO+hCe6GcnByVhCejjgb0y2EwMxnO2k0g="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.9.5_1572199457587_0.6591415253158108"},"_hasShrinkwrap":false},"4.9.6-test.1572199612980":{"name":"ts-toolbelt","version":"4.9.6-test.1572199612980","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"5f3233577071aadd161c4925c4dd9ce7a25c917e","readme":"\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import * as tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"bcd5e4b35328ef66887327b6b95099c6411ad080","readme":"\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import * as tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"f50ae1bca46fb4e86463e7420107a18f2064a463","readme":"\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import * as tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.9.10-test.1572290522801","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-Fo6yPiIfYo52vsitDfnSIYKUv/ERWap6pKcV7wK4REhyVizfCygb3JIcJAbsomvX1ZtjeJ0PL9V62ZSxulHj5A==","shasum":"c7f6bb5089cd8ec038e493530740bf1c5a95e4ab","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.9.10-test.1572290522801.tgz","fileCount":219,"unpackedSize":242581,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n\r\nwsFcBAEBCAAQBQJdtz/kCRA9TVsSAnZWagAA30EQAJlWkBVl/v/2YoIcsYW8\nC7ctnl3KUnzD06vK0EKjRK/4yAXvAQFhdRdQ9g//rrfvQ1zlQyl7mF9SoZ24\n5sXIJm3YU6m44w6fwzZ9C1L80UvJVG8+/OkDczCuXFoNKUTVq4C5ayr5sjPr\nr6MhT7bNp4BBCZ3qXqxS4P1cXrunceLnoHInfj7BduVu6vDdnyVdn/j+fkSY\niAKDpyljVjq5JKlu6IRVEJzC5smu2OFGdtHJ3STi4OQ2D8texupmGcrEbPOW\n6BM7EzfuWVg0YuQWGaadnI27BZBVp+QQYsDQ35GffjO7z8fW/0JQLw9YfC/h\nDU2Yb1qT5c1fPdOWNQgd7x+4oL2URZ8SUCTg4ReTDVuPyWTHpqry5mbBGfUw\n9V/0J4RQloOHiEd6ValXB3NTInNRqrDOCSFlHbyKrtpWSj4WgLLnaG62FJQI\nAowq7NZOT5KHjnHqlPt8497QQgFs3ch7nYvjjAWwWG3mX964zUReKyX/6UiP\nsOIK8RVyAfeRijmA5vyK4G+FjcaNpIogiI70IZava+BvH/26zRFoqx7HqtLL\nOvDl+i/VlCO4D2Fuxu/2iKNvezs1JnHvHm8oTzgJL01/Nbid/GYjw+zwhDPi\nsUlXOZNJyG9nVF+b/D/I2Mh9VnaY7qwYLYE8XqMgRc+bhF5XpxbdgWP4Ssl5\n2KTf\r\n=HpyU\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEYCIQDGJCCqTFqEivOeqhTbo4CUFoPhHBJPCNfwIbacILdcIwIhAKzA2MrvM0/tpmNnkSUe5jNU367PLdXHFwo3Nl//xiiM"}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.9.10-test.1572290522801_1572290531605_0.07692532684618247"},"_hasShrinkwrap":false},"4.9.10":{"name":"ts-toolbelt","version":"4.9.10","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/types/src/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"f50ae1bca46fb4e86463e7420107a18f2064a463","readme":"\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import * as tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.9.10","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-3bGUaOA6l+9eF+l9O/cqdWVfTP7zn+ErQb0wYPLGtvyQMx42892PgKmNaGDGdlFTTyqbAjBZwvMAmhUodL6+Jg==","shasum":"4194224c29cd46be50642a8d3021207fe867c985","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.9.10.tgz","fileCount":220,"unpackedSize":242562,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\n1ool\r\n=awIt\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEYCIQDBMK5Edi1E+03Xq2zkeF/ngGBo+4DgXwtwwC9eDFHeRAIhAM1bpOwmiNz9cvS+TT0uf9fkVG2ez2hC2COOBARM4Mhl"}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.9.10_1572290798056_0.8288373983148181"},"_hasShrinkwrap":false},"4.9.11-test.1572301514431":{"name":"ts-toolbelt","version":"4.9.11-test.1572301514431","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/types/src/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"e2789f9bff1ac185150cd9a0524a5be256174c7f","readme":"\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import * as tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.9.11-test.1572301514431","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-Ub1JEYmdyekGv8FTJFS6KzhmbMkyZaDLnSU+N/DqWCILJQVGy+dMSmwJr6K0GjVrmC1XtGKPXFB7n0aOyhioiA==","shasum":"46ab985297b720ecddaee89cc57479c336e7024a","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.9.11-test.1572301514431.tgz","fileCount":219,"unpackedSize":243438,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\n8M0I\r\n=6s2V\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIAZyt/4Us+hItpEbBhAjzwMBYtl0POMqzk4e6YegEHD4AiEA7qk99BM9zsa9y+MH/MNyhNCFN8fh6eaal3m3HK21tIo="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.9.11-test.1572301514431_1572301522912_0.5329377604353447"},"_hasShrinkwrap":false},"4.9.11":{"name":"ts-toolbelt","version":"4.9.11","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/types/src/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"e2789f9bff1ac185150cd9a0524a5be256174c7f","readme":"\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import * as tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.9.11","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-CmuH6XncxGq/Trl2LUOxNU+mJ14P06isjH+2wvBmUN20ioD91rONz5PwuxaE2IvTfgJZsQqdu50p/uFn6bGAbw==","shasum":"73af9e9ffd78329fb6801047cdaccf55ebe36ac1","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.9.11.tgz","fileCount":220,"unpackedSize":243419,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\ndOGS\r\n=SmNa\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCICqS2hi+zPGsaTSxPVzL4GVJ1VO5f+EknT1rLvi7bqO0AiEA3Qz9rhcxnw0/cqnH8NplkaebXcYyUm6y7EJYFmERUJQ="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.9.11_1572301757036_0.11487343806802452"},"_hasShrinkwrap":false},"4.9.12-test.1572301805695":{"name":"ts-toolbelt","version":"4.9.12-test.1572301805695","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/types/src/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"d2c6ff08679731194a7d42e7c654d44e1da5b96b","readme":"\n \n\n ts-toolbelt
\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import * as tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.9.12-test.1572301805695","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-sbRgF0xLt4ordmHJgz7Hnkz03x/AZMLCAB8Die8lUm/8runJBtUoNGhynZOr1I6bvS+1d3hgILNTVTOlH9qX1A==","shasum":"3fe73a2463ec71ff83cc1207d13916a579c7f614","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.9.12-test.1572301805695.tgz","fileCount":219,"unpackedSize":243532,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import * as tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ All the types you need for TypeScript\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ TypeScript SuperPowers\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n\n
\n Explore the docs ยป\n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ TypeScript SuperPowers\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"986e0a14f36f0636b463c14382e3be3cfcdf4495","readme":"\n \n\n ts-toolbelt
\n\n
\n \n ![\"Documentation\"](\"https://raw.githubusercontent.com/pirix-gh/ts-toolbelt/master/.github/docs.png\")
\n \n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ TypeScript SuperPowers\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.9.17-test.1572539573454","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-pRWNWqss+Sf7eKJ7ZwG2j88Sf//ZvUt15A2RZxUqGpQOmaD+TFxtDkmT4+2oUYzBHls7dMtGW8h1Swl8mMnc4w==","shasum":"aa1aa095438ff9cc10883e4599e7884064503e86","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.9.17-test.1572539573454.tgz","fileCount":219,"unpackedSize":245154,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\n5QiS\r\n=Qp5x\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEYCIQC/vDuE17RgarR6xHgCkHfW96rNTvsF8yR+mZ98UrfPhwIhAKOr7dc+TlgMiZ7nq+Y8iMUhcNkUY/4LMAaN4kgcLRR2"}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.9.17-test.1572539573454_1572539581847_0.09474016809348007"},"_hasShrinkwrap":false},"4.9.18-test.1572539768153":{"name":"ts-toolbelt","version":"4.9.18-test.1572539768153","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/types/src/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"961bd348cf295c3bf332a2e31cabf954560e5088","readme":"\n \n\n ts-toolbelt
\n\n
\n
\n \n \n \n
\n
\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ TypeScript SuperPowers\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n\n
\n
\n ๐ Docs\n .\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ TypeScript SuperPowers\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.9.19-test.1572540030599","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-LP8cT6YS52KqZbcL9fm7w0bBC1AChM/21gDYd47XKNtSTW6SrTuFjFDfMU9TXlQyNc+ZrIvF8F8h8SiFNQfu5g==","shasum":"ea7e1ed6ff14b6fe77adb171e3c29082d81f091e","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.9.19-test.1572540030599.tgz","fileCount":219,"unpackedSize":245444,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nK5o7\r\n=PN58\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIBTtAaJiCZZNu9mjVQqyptGQvk809YJuD3/ypeB/kY0xAiEAgh4edVvrxppvm7QIES0buNk77bnXTgczZ7N/kcSWIKE="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.9.19-test.1572540030599_1572540039520_0.5563173216883459"},"_hasShrinkwrap":false},"4.9.20-test.1572540162146":{"name":"ts-toolbelt","version":"4.9.20-test.1572540162146","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/types/src/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"aac770fbe820805d710ecdb80342f9ef6c3561fc","readme":"\n \n\n ts-toolbelt
\n\n
\n
\n ๐ Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ TypeScript SuperPowers\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.9.20-test.1572540162146","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-7NUXniEFjQSriEyUyc55UMECN5zsQx+l0cqViRzn5B/PJH9S7ggTyQFK0qn4yq1E/QkvtO28CDp1r4YfbvYUWA==","shasum":"6079ee89140588d93d3aadb8c318061b90525276","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.9.20-test.1572540162146.tgz","fileCount":219,"unpackedSize":245663,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n\n
\n
\n ๐ Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nIt is incremental and it will be completed on demand, you can ask for this below.\n\n#### [Questions โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nAre you missing something? Participate to the open-wiki by posting your questions [right here](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ TypeScript SuperPowers\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.9.21-test.1572546384704","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-htKnaNjP4JyPdtUsJ7tb/36ZXPruHilI/9nWHk8NloOfaJo6MZ+ww7xQqt9D7jOe/poVe4J5NwItuapWUgTNZA==","shasum":"304589b4fa5958566a3f758161adf959c4f8527b","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.9.21-test.1572546384704.tgz","fileCount":219,"unpackedSize":245784,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nTC/1\r\n=9Izs\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEYCIQDyd7AMCZKy/v4bF5O85g8J0AnGHJnpCdZqaSRiiVFHxQIhANHRKz2mavoefZ+aSeKyg/sUNEMkM1M1obVG3/Bqe9aY"}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.9.21-test.1572546384704_1572546393281_0.19968407376390918"},"_hasShrinkwrap":false},"4.9.22-test.1572551476697":{"name":"ts-toolbelt","version":"4.9.22-test.1572551476697","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/types/src/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"870a98e7ed533cd5c9b600d42dccc11d451ee667","readme":"\n \n\n ts-toolbelt
\n\n
\n
\n ๐ Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you'll find some extra resources for your learning & understanding.\n\nAre you missing something? Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐๏ธ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=is%3Aissue+is%3Aopen+label%3Aannouncement+sort%3Acreated-desc)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ TypeScript SuperPowers\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.9.22-test.1572551476697","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-hRFmlrsMf/UAUS4CWBe52+J0bTbofit6HdPs7gNgyOUbXQv4qi15t1LlGqgkubB9TVwgbl20Ia5siRunXmq5BA==","shasum":"b1234db7b70379d589825a56466fa6ace02eafe8","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.9.22-test.1572551476697.tgz","fileCount":219,"unpackedSize":246069,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nRi1b\r\n=iqQQ\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIQCtgEHa8evEgXIjZwEiVWqSPpj/jFxQzg50byrQVmMVUgIgFakZclX+9njx7qMG2ps7XKYEO6MdR96M0nXfIc/bOGI="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.9.22-test.1572551476697_1572551485960_0.2244030427641186"},"_hasShrinkwrap":false},"4.9.23-test.1572553482262":{"name":"ts-toolbelt","version":"4.9.23-test.1572553482262","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/types/src/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"6009fb4a8fe639d8afd8a04e821f8922a73a78ac","readme":"\n \n\n ts-toolbelt
\n\n
\n
\n ๐ Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐๏ธ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=is%3Aissue+is%3Aopen+label%3Aannouncement+sort%3Acreated-desc)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ TypeScript SuperPowers\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.9.23-test.1572553482262","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-oWbFJDYgKPTYsaRG5UHPec38fc7OPK3I+kUclxCeKzAJSPD+ZFnslehFgKHiL026ATn1NJcPAgC/8VVn16KcEw==","shasum":"f836f8c4bd1b132c90f56fc5bb67cf3193edd825","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.9.23-test.1572553482262.tgz","fileCount":219,"unpackedSize":246345,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"fd45818013ecdabf945ce604329499e29eeb6dcb","readme":"\n \n\n ts-toolbelt
\n\n
\n
\n ๐ Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=is%3Aissue+is%3Aopen+label%3Aannouncement+sort%3Acreated-desc)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ TypeScript SuperPowers\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.9.24-test.1572555106016","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-kecFifLV/ZV1/J0h8/o6LWFVB8u/maV1Sw71rlzP0VAgOoP7J6HITLcxMqYMNOXAscUjkb9I/BGvZ9yvmbQV1Q==","shasum":"150434236e9be9f3b65c2390350d89dd7d1cbb61","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.9.24-test.1572555106016.tgz","fileCount":219,"unpackedSize":246560,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\n3G4z\r\n=UZvR\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEQCIFS9d/gWN8fEKGVeFA3sAEItvBycbDKiI4xGXN/DwbeoAiBtVYia1FLhdcn2u44iUCJXSmZGhVjraTd1DoAA7OfsEg=="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.9.24-test.1572555106016_1572555114840_0.06295397380430923"},"_hasShrinkwrap":false},"4.9.25-test.1572555190742":{"name":"ts-toolbelt","version":"4.9.25-test.1572555190742","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/types/src/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"e30bfd1c16aecd23b77bc5573b9760f58c4d51c4","readme":"\n \n\n ts-toolbelt
\n\n
\n
\n ๐ Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ Get the most out of TypeScript\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n\n
\n
\n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ Get the most out of TypeScript\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.9.26-test.1572556041485","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-qLmooTQ9qVxBZ/+kX/+SzaSy5eS4X+hK0+9UlucwlFRV1Pu8PTCcDIVfP80uKAe9oNoQhhD8ZUenUqqHgQJYsA==","shasum":"3c421894033e1dead610895a3a8688a516626d38","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.9.26-test.1572556041485.tgz","fileCount":219,"unpackedSize":246992,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nT33N\r\n=t+TU\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIQD1B+hycHtSgkcx+fWHYsB1D4jE2uQsQu5l/OWS4GJJSAIgMEAWqY1DqDorBdIP5Lm5IpN/okAAemKLXeTgWSMAyRk="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.9.26-test.1572556041485_1572556050030_0.05222021290727841"},"_hasShrinkwrap":false},"4.9.27-test.1572556252966":{"name":"ts-toolbelt","version":"4.9.27-test.1572556252966","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/types/src/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"51f1c08609853d7fc70e898089b42773aa17cdee","readme":"\n \n\n ts-toolbelt
\n\n
\n
\n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ Get the most out of TypeScript\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.9.27-test.1572556252966","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-W+cyB6ETfWPRSay7oVAzw+bI8gOZpjWAuM6Geqphdg+uiZ7xPz1/5nJhBRFw/I1YpgPjiHQAgfzAHnblTs1UXg==","shasum":"eee20997984371c4b5e06b51b07a137a44a59ce8","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.9.27-test.1572556252966.tgz","fileCount":219,"unpackedSize":247207,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n\n
\n
\n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ฉ Get the most out of TypeScript\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.9.28-test.1572604989247","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-SDwE/EUmJCimOHVbxZvD+V8gN6018vGxgaZpBJdV4fRfT8E9827V5hW3bQ2xpXFwk84xRw2QkhUK7UiDD/jcEg==","shasum":"62f1e1ea868dcfa003080029fb38ededb8ed73c4","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.9.28-test.1572604989247.tgz","fileCount":219,"unpackedSize":214636,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nb8Xk\r\n=wm0q\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEQCIE5R1UTuawvM0NZsIBN3jAiVD4fgcsKSMhiNZommhDBKAiAlJl4XFTPi5wRnzgB2AOVPJwocPKwM4mr/Zlj+1uR7ZA=="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.9.28-test.1572604989247_1572604998019_0.685112380775726"},"_hasShrinkwrap":false},"4.9.29-test.1572605400406":{"name":"ts-toolbelt","version":"4.9.29-test.1572605400406","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/types/src/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.1.0","@commitlint/config-conventional":"^8.1.0","@typescript-eslint/parser":"^1.13.0","eledoc":"^0.0.10","eslint":"^5.16.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.14.3","husky":"^3.0.2","npx":"^10.2.0","sort-package-json":"^1.22.1","standard-version":"^7.0.0","ts-node":"^8.3.0","tslib":"^1.10.0","typedoc":"^0.15.0","typescript":"next"},"gitHead":"b54198a2dfcf94b8bbdeaa7ee4c25827e68c1a7a","readme":"\n \n\n ts-toolbelt
\n\n
\n
\n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"a54b09b1538336d76a65cff8ac052eacd88a7b57","readme":"\n \n ts-toolbelt
\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.10.5-test.1573422577662","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-Entay4ErSmHI8IpbM7etP1pSmO1SjKi6xl48qdPAsCXPoueiXYgqbCdtJTXdZR5wR+wlUNv3678ro0V5kxQWsg==","shasum":"15ec8bdd1e6a3eed4b4724ddcaf44c7903f7c662","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.10.5-test.1573422577662.tgz","fileCount":5,"unpackedSize":275909,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\n5WiV\r\n=tbWS\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIFqt5LiIXpReyp1mP/hRuL0zsseImpWKP3j1wfKv1FHeAiEAgNI0TnCG2f2AUwtLfiyW6aDHXfaONknNRRTuJf5tz30="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.10.5-test.1573422577662_1573422586146_0.12242838725399152"},"_hasShrinkwrap":false},"4.10.6-test.1573422767793":{"name":"ts-toolbelt","version":"4.10.6-test.1573422767793","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"ea4fbe9edbe7ccdbf8bd320bec31a343e0170936","readme":"\n \n ts-toolbelt
\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.10.6-test.1573422767793","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-z6I6F/8yvxLncKzYTV5ZSfkWCPez2bzD//D9asK7GSRhLG4T2b95QuMlsqSUKDCYMdxIGI8Ubfe4JtiIenIEXQ==","shasum":"d1e66da08b3f8c3a78358df74fb6bf0b47e52418","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.10.6-test.1573422767793.tgz","fileCount":5,"unpackedSize":276126,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.10.9-test.1574017152370","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-k2CpvMatBllKx36T3xk6mreGm2mJ/CekxZ2uCufiX+utX+tcg6ende5KqIWmddAiPkNUW67rM9A0JBi86umc4g==","shasum":"86212e40b26c1173556b7c2d2922c35d9d7e3c22","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.10.9-test.1574017152370.tgz","fileCount":4,"unpackedSize":107140,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\ny+jB\r\n=XEZ1\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIDRx8msB4Of+a+MEShlSbVzC/hv8Jbslc0IDC/MxeXMhAiEA9tzCDNYZq3C4laZscswyUKjW7WmTjPwAXyaftJfO/wc="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.10.9-test.1574017152370_1574017162098_0.8747784913631884"},"_hasShrinkwrap":false},"4.10.10-test.1574017299796":{"name":"ts-toolbelt","version":"4.10.10-test.1574017299796","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"b7192e00916d46a4076d0e48e6ff1cd8c5556194","readme":"\n \n ts-toolbelt
\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.10.10-test.1574017299796","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-Si/HviVTMl9yF6D3fvW9obLmA/pTNtFXeHTbKDW1Wv23ISAZTHb9SoKtw4oX+rUW1STK4NmjKyhKVak2dRs43Q==","shasum":"090110afca2d0a78469d0e2c3faeb15374202af7","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.10.10-test.1574017299796.tgz","fileCount":4,"unpackedSize":107361,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n\r\nwsFcBAEBCAAQBQJd0ZkdCRA9TVsSAnZWagAAMzwP/1QDoGyCXbcS/+tCE4aY\n8ZCoWf1GcPQlAMFo2OQH4HY6/9f8d1FetWNKmTCgEH2gykcF43UFA36exKo4\nwN+e5h7mKvAIWGwN5rwHrPR4kBkCorAFPwi0/5E2/FrW9He357YxJ3y2WQh4\nU6i+9WSnKrGDKnM42AvPAK0KbfpM8fW80/12xaV61gLIFD32KsCR1HW4cUSN\nYGafCnPq1BIwjiu6Yezm5RMk9Qxy7LjFUUxOBhwTSms8zWfjdsS5WbPrGFwT\noUfE7Tulgr4i1+uOW1NRk6rGCPwCbgMzWlKVpkkS1anrSrtIE87pq/mgpkot\nkWDWvDXcGnl0NySfO5fgR2YWO1xYt+cYypz9Cks84rVNZDxxJizuwhdfZPj2\nTc75PLdY7HWflONHiw9MSH7GLS3Q9xUJ8bRUCNAsSfBloDAsDqEy5ka0/rkW\nCT7QG1m6AlAoFKwHcKhLmdt+j00QD3Uce5oZo3GGFOeFlmvr+uGkDYoZK9ul\nYSAhSWHFoFa+9Tclme4Fgz2mrb1Nqn/e5wh+Z1ztREHBQqkEDSeYE0zgBUue\nzX2+d/ovgCzYjRW7aQ82DzNK+BY0w+iBQO/3D3RBnQ80XXU4ClPV1W9iX3tf\npUXn+e68xGhPuESoHhCzsjba+NfrpKjVMwrmklD2NfjsJfn1akAlF3jEP3jD\ne2p9\r\n=6u9R\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEQCID+MrewzbaBKa3kcZEJI+G1CnAkPNWPvjqYy1NHyoOwKAiAh7vmGEzICg7c1gV8CE1kaSpkWzsW4CQVC/okfOD8mMg=="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.10.10-test.1574017299796_1574017308738_0.6151408038212822"},"_hasShrinkwrap":false},"4.10.10-test.1574018470935":{"name":"ts-toolbelt","version":"4.10.10-test.1574018470935","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"b7192e00916d46a4076d0e48e6ff1cd8c5556194","readme":"\n \n ts-toolbelt
\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.10.10-test.1574018470935","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-KP1b7nYqbU3IPuCL7bXQSaXqUfPl+S16UJ0Fg+qpcZpNL9qGvQs38/ryg900/yE487h9ZrQh1uDBRZDwAsChPA==","shasum":"34cc353f160a5ed4003b723a36cd7affd8efc27b","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.10.10-test.1574018470935.tgz","fileCount":4,"unpackedSize":107361,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\ntwCS\r\n=4Rm1\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEQCICTWnsmNNSgaVm5tIHImr9LxD5T6sc9YDrlFEiX+yE6/AiA0CDvqRdEhgxkbvcdZJlAKOyxzIP6xKy8f8JvC9aJJXA=="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.10.10-test.1574018470935_1574018479091_0.5600075936025422"},"_hasShrinkwrap":false},"4.10.11-test.1574025244015":{"name":"ts-toolbelt","version":"4.10.11-test.1574025244015","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"19608cf34875e0d4cb582babcd8ccb4589805424","readme":"\n \n ts-toolbelt
\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.10.11-test.1574025244015","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-Knms9j9BsBooEPD6vPn8HoErIci1YgYdTPkcW4ePeoR3+wG1moQCayDCmz/ueb1PmDS8tGjnnotdA5E0lbL/1w==","shasum":"598a9204f9d531efe80405a12c147f2c91a43bb9","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.10.11-test.1574025244015.tgz","fileCount":4,"unpackedSize":107606,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n\r\nwsFcBAEBCAAQBQJd0bglCRA9TVsSAnZWagAAvSUQAInZyjJxWNDzLBmOuNTj\ne4Vo7ceZUiZuX7y7rBNw2gSvpBR4wDEz3kBr8V/lXbTvgJpu5eyr8W+bV3Y2\nlE6v8USeSHYVctyfvsLRBBZFZeeGRxatK2ZhChoXtedItWucCNtZA3trJzpx\nXV2bnmvecBVwU7rpxmCi7AvuKsgS2TNJBMgxPpYd5m643R/fUw6NJrlun8oJ\niUCWLKqCvPhn2ZHrPCuf8XgvJJ1M7UhUF1KEWQ7bJG5t/wSlew8QheBPcMCw\nDcJtnSZUr/NFVZ886S1juDHex9hNFM3Kl/VRv+CUMkUlk2nnnworZZicslvQ\nkCcAyPaEefLSiXpc1SAR83c8hhuqmjZVQZYglm1y2/tk5UwizAdt6ohFzROO\nvhQroRkEErmJ0ynvmRVC+Uok602/QUz1QBnUl5WLCZIoxtHh+aNC+5Nt5g9d\npUHfUHCwgyoB+GSX7lVfTrMuqA5hzLv80LbMaXt8zfKrjT49BHeUxgaOAlYo\n9NF1pfyyhn62ZuvHndJW01Il4hC4g3jCO89UbrDNQKcNewtI+OsSYyG4PqNn\noofEXQTttKZTHdN721Eyp9Dqq/Q1UnvOaY2nlDWad/NbT4xU4KVHP4oJaEbC\n3DveVYk/fM7MH37+/L/ubQkWIOKA1AKjfUi9wqEatmemiwtR83yf9q7rUZUa\n0ZC4\r\n=UzfY\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIHqqqJnUh25ZZpSYJ2FzMixHH2dXaITQfjPjKn2oSCyUAiEAuZC6pQURIj0GwC8aS+XCnTKzIfmSL4wn6mmUHYzgnUQ="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.10.11-test.1574025244015_1574025252903_0.9780588145552105"},"_hasShrinkwrap":false},"4.10.12-test.1574027043756":{"name":"ts-toolbelt","version":"4.10.12-test.1574027043756","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"bbd00ce3b8c4a8ab08048285bec8c07751b8e6eb","readme":"\n \n ts-toolbelt
\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"d18141c11cfe393e933e14525ac325afbaeb1867","readme":"\n \n ts-toolbelt
\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n#### Where to Start\n\nHere's some of the most useful utilities you can page through:\n\n| | |\n|-------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------|\n| [Object/Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Tuple/Append](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_append_.html) |\n| [Object/MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Tuple/Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_drop_.html) |\n| [Object/NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Tuple/Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_flatten_.html) |\n| [Object/Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Tuple/Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html) |\n| [Object/Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tuple/Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_pop_.html) |\n| [Object/P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html) | [Tuple/Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_tail_.html) |\n| [Object/PathUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pathup_.html) | |\n| [Object/Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | |\n| [Object/Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | |\n| [Object/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | |\n| [Object/Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | [add another entry](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md) | |\n\nIf you feel adventurous, learn [how to re-code this library from scratch](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) to improve your skills.\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n#### Where to Start\n\nHere's some of the most useful utilities you can page through:\n\n \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n\n**If you feel adventurous, learn [how to re-code this library from scratch](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) to improve your skills.**\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\nExpand List\n
\n\n| Object | Tuple |\n|-------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------|\n| [Object/Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Tuple/Append](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_append_.html) |\n| [Object/MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Tuple/Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_drop_.html) |\n| [Object/NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Tuple/Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_flatten_.html) |\n| [Object/Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Tuple/Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html) |\n| [Object/Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tuple/Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_pop_.html) |\n| [Object/P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html) | [Tuple/Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_tail_.html) |\n| [Object/PathUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pathup_.html) | |\n| [Object/Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | |\n| [Object/Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | |\n| [Object/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | |\n| [Object/Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | |\n\n> **`TIP`** Another utility worth mentioning? [Add another entry](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.10.16-test.1574285575441","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-8KmLvi1x3Xd1idl8Sz7UsoNu9WNLWofPpbEXqxhQcV7JYHo8TRjuphEL5SZJSYm7eoloyM+5xRV328PhL0ylsg==","shasum":"8efa33c4b01bde8e74c5fe5ef40dcd91b8e45c57","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.10.16-test.1574285575441.tgz","fileCount":6,"unpackedSize":280728,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"3f447ad2a010acbe9ee6915f06ea9815d9b60a7d","readme":"\n \n ts-toolbelt
\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n#### Where to Start\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type kind you need to operate on with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\nOr page through the list of our most useful utilities\n
\n\n| Object | Tuple |\n|-------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------|\n| [Object/Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Tuple/Append](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_append_.html) |\n| [Object/MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Tuple/Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_drop_.html) |\n| [Object/NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Tuple/Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_flatten_.html) |\n| [Object/Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Tuple/Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html) |\n| [Object/Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tuple/Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_pop_.html) |\n| [Object/P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html) | [Tuple/Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_tail_.html) |\n| [Object/PathUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pathup_.html) | |\n| [Object/Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | |\n| [Object/Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | |\n| [Object/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | |\n| [Object/Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.10.17-test.1574286287061","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-YB7qiakKzz0v5NrMSYHTXE0zKRbdpK4coKFT6/6FBT8+mleY+8Rdyan2UomVDqDuugYVbHgJRn6xgjSYlWqpTA==","shasum":"d6c49ee77ad6dbd61c9c153d0c99104a0e25170f","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.10.17-test.1574286287061.tgz","fileCount":6,"unpackedSize":280870,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\ndyth\r\n=b20M\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEQCID6NIP/0TnOCVxnmNOGRrzi0XC6022EiMCj57nPFseVgAiBuEmrIV6QFTsMt3z1gPnN1ChhO9vETs/0IxhuJTEh4qQ=="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.10.17-test.1574286287061_1574286303569_0.1955372942198581"},"_hasShrinkwrap":false},"4.10.18-test.1574286480959":{"name":"ts-toolbelt","version":"4.10.18-test.1574286480959","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"102c313ead3962aa54a99d4f4ec29e70707e1b7f","readme":"\n \n ts-toolbelt
\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\n#### Where to Start\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check\nOr page through the list of our most useful utilities\n
\n
\n\n| Object | Tuple |\n|-------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------|\n| [Object/Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Tuple/Append](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_append_.html) |\n| [Object/MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Tuple/Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_drop_.html) |\n| [Object/NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Tuple/Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_flatten_.html) |\n| [Object/Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Tuple/Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_concat_.html) |\n| [Object/Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tuple/Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_pop_.html) |\n| [Object/P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p_update_.html) | [Tuple/Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_tuple_tail_.html) |\n| [Object/PathUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pathup_.html) | |\n| [Object/Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | |\n| [Object/Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | |\n| [Object/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | |\n| [Object/Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.10.18-test.1574286480959","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-GMZ5ZmNO2Iyg1ViJG5eBogfxX+8wY0tllsJaJO+g3BmQOczOdCZPlDKWhIBSbeWbmZI7YpbF0/KR0Z0daNp9bg==","shasum":"44259c7c983010f36a6e69f5819569d554519504","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.10.18-test.1574286480959.tgz","fileCount":6,"unpackedSize":281079,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n#### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n#### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n#### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n#### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n#### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n#### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n#### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n#### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n#### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n#### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n#### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"bbc6d11d1d5eb5bc57e67e90010b2170efa8bbf8","readme":"\n \n ts-toolbelt
\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.10.20-test.1574372373827","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-Ad2mmTOzxGuwYUZZa+yCyzU570jOLmwKYQXTZxTPd/cQdjJx3DAIrezF1gvjcRKmw/qirwCd6iy91mldmsPAOQ==","shasum":"7ecc1dc9d5ae510e8613c7877724dfd582bd8cf2","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.10.20-test.1574372373827.tgz","fileCount":6,"unpackedSize":282099,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nZQ5n\r\n=5sgF\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIEvYT4AkJq10VepONBGffNUiGlVQuXE3sbZDh2zlZMw/AiEAh8ph7ZBDj22ecNDHR2joOtR8Oh2jaR4cgX6/jlRG+28="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.10.20-test.1574372373827_1574372388750_0.5876662740329293"},"_hasShrinkwrap":false},"4.10.21-test.1574373131066":{"name":"ts-toolbelt","version":"4.10.21-test.1574373131066","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"337a5ddb20bae6119fb693d3b3ae0fffa4a93d26","readme":"\n \n ts-toolbelt
\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"0c26a167ff2989921be3fdd28ffae2fadd012ed7","readme":"\n \n ts-toolbelt
\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.7.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@5.0.0-test.1574422268285","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-i54AZevbuRM0NV9zg5TVpj0jqlMuSYyU41cAEpehI943giL/Ud9FgRLqZ/BIrBrVOSouOHa4FgoIlhpnuWhFQQ==","shasum":"41b55638436771063a50e37a5e6c4549304e21f1","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-5.0.0-test.1574422268285.tgz","fileCount":6,"unpackedSize":286103,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nx1lu\r\n=Qn/h\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIQCkI94WPjnbI+L/3CuUn7/RIt9eb62f+X9YtZcY8kJniwIgMZuD9jCSo+TiJiCFIq0gQVOfuB9EST+jYG8DZWItlFg="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_5.0.0-test.1574422268285_1574422312847_0.5471890832388786"},"_hasShrinkwrap":false},"5.0.1-test.1574422334055":{"name":"ts-toolbelt","version":"5.0.1-test.1574422334055","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"72497b9ee59d2b835191805ae9dd79acee34ea1d","readme":"\n \n ts-toolbelt
\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.7.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@5.0.1-test.1574422334055","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-ibXCavGDisFFa+7Ev2l8m0kPHqIARunaB3dcptAmi0bZLkgENL1BG3gVzZnt7ju8G6tbtcZYQ//YkRAl8Onl6A==","shasum":"1cf5f35ac36c4dd23dfdf6f6805bc2afa39e1f35","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-5.0.1-test.1574422334055.tgz","fileCount":6,"unpackedSize":286327,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\n1oeV\r\n=nr7U\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIDF6OiwfzIbM+lvo73DVO0fjqJ0sXDTl86pjdej/HIVwAiEA5oA3QTElSnzDnT2GjPw2waGKBwR1BqdsjMHKDndmYi8="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_5.0.1-test.1574422334055_1574422377293_0.9189679159573716"},"_hasShrinkwrap":false},"5.0.2-test.1574595380311":{"name":"ts-toolbelt","version":"5.0.2-test.1574595380311","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"61a3cf35a9d545013abc98405f514d063bfceb67","readme":"\n \n ts-toolbelt
\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.7.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@5.0.2-test.1574595380311","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-5aad23ao6sWhdslFOmz/EUgy4mDoaLyPgW9fOE1hgHczmPeHfGssSL2wqdYx/kskQXyqoPp57UFKbPag9DzzFQ==","shasum":"e0b9de1572e91b188150a06fefeee32f5d6bff70","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-5.0.2-test.1574595380311.tgz","fileCount":6,"unpackedSize":286543,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nDa00\r\n=pN0N\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIEolSLugQnnkWfqM6dCyuqdaiPS6TgHVjH+GSz+2utnDAiEAoGkZBbayB2tVrNHkHkg5UwF/DUPjFmxlymtvz54boMI="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_5.0.2-test.1574595380311_1574595413601_0.959276968176036"},"_hasShrinkwrap":false},"4.11.0-test.1575065646270":{"name":"ts-toolbelt","version":"4.11.0-test.1575065646270","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"e18da332bd1e6bc29d5f6ca9bc6ed1d3acbff761","readme":"\n \n ts-toolbelt
\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.11.0-test.1575065646270","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-Z3Ia1C6pBzKdE0gnOx9e5KBvzCvHXLy3iHBicPnf7Tzbg7DiOT/MGSZrZf0B/NOqkrmNsSXsIdXxU5dfmPq5BA==","shasum":"6c5085378e142ceebe9984f22365c61adc1834f2","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.11.0-test.1575065646270.tgz","fileCount":6,"unpackedSize":286695,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"33490c734e130d450f0a29a5361ab3f7e40a5aab","readme":"\n \n ts-toolbelt
\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.12.1-test.1575110560592","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-i6Fns0KN5rCPdFQcE0qke1iKxmjzXZO0BcqxzewRc3asxKcDlHdhu7Kl2N02jhLtthqvRJKQ7/qt2Tle+cR4PA==","shasum":"c17d157ee33c133a79e5ad4f43640b17f4825bcb","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.12.1-test.1575110560592.tgz","fileCount":6,"unpackedSize":288256,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\newLL\r\n=3U8b\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEQCIEoiM48JpqFGsNDsT4VMLYXDvCWlTjvRsML0O9827yAxAiBkjnSb90CgJPO77P741c70jfo8FlOQiGZiWxbCzZG7GA=="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.12.1-test.1575110560592_1575110576412_0.4451927864609697"},"_hasShrinkwrap":false},"4.12.2-test.1575119490554":{"name":"ts-toolbelt","version":"4.12.2-test.1575119490554","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"7536d17ec26d80a6843aca1aa0c97d14cf7c5ae5","readme":"\n \n ts-toolbelt
\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.12.2-test.1575119490554","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-HwwrBK7koIxNajow3uuW5Sc7hksnDJVJBxdKmKe8qg5h1HRGge3sxtwQsBOu03CGLlUcAjJel0ywiLgyFIrknw==","shasum":"92608a83426b1d6f258d48ab0f7ee54802332bbe","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.12.2-test.1575119490554.tgz","fileCount":6,"unpackedSize":288563,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"da2e0c41a6a0b89b64b717a459a6bc160ecbe567","readme":"\n \n ts-toolbelt
\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|--------------|--------------------|--------------|----------------|-----------------|--------------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **N**umber |\n| **O**bject | **O**bject.**P** | **S**tring | **T**uple | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, Tuple, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"6bd18a7c69e70eea113171e4ccd1328dfb6b6a96","readme":"\n \n ts-toolbelt
\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, List, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.12.9-test.1575300542013","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-m88+pzqNHSnQrdFN6MVRBwqdHR0NtxIyQadRTwDQgcrYM7zo3aDk1IQO7I1tbpzNK4ROylkDymLZpDogLqyqsA==","shasum":"8f22b1930656dce2edb0b7e3ca789db4e93c2f88","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.12.9-test.1575300542013.tgz","fileCount":6,"unpackedSize":289917,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\ntmOY\r\n=gwnq\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEYCIQCsrkNaGEH2sf0HXMlgr2A9+OAPVegEW7OE1ENK3SUC8AIhAKJKFh2UXQSXwc1iPOtiXfPZPPVQG1cBnxDy/8tO45E/"}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_4.12.9-test.1575300542013_1575300556471_0.0053809213854363325"},"_hasShrinkwrap":false},"4.12.10-test.1575300954385":{"name":"ts-toolbelt","version":"4.12.10-test.1575300954385","description":"๐ท All the types you need for TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"b1854b5605c7325187a6960b9fac6a954202e869","readme":"\n \n ts-toolbelt
\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, Number, Object, String, List, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@4.12.10-test.1575300954385","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-ZbMUvAPuyBtfM1VxagpwjFbvuqP13veMUjw7+Kswu1chh1MNOvbRLhTHxPEkRF5R8TPQbBNx6shV/5PF2F3TSw==","shasum":"8542584225e9dac3eb313f07887d45539a97d1a8","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.12.10-test.1575300954385.tgz","fileCount":6,"unpackedSize":290210,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n ๐ฉ Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n// Optional, recommended\n{\n \"compilerOptions\": {\n // ...\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true\n\n // this is optional, but enable whenever possible\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true\n\n // this is optional, but enable whenever possible\n \"strict\": true\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** match the type you need to work with with the above\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, T, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.1.0-test.1577725119213","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-MBLHWCCBCZ1zdtVJG/DDso9pENzeXLY+Y8NlYOZeK5TEiV7vNpR2SYbK9h9r/xmwMtR6vslwpRcj3ZpIxpXwzg==","shasum":"e795d01df126dc32d4e8ba797d131749fec0c747","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.1.0-test.1577725119213.tgz","fileCount":6,"unpackedSize":345996,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nR/za\r\n=y0GS\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIDeUz0higYNZkORm3fPFTYtHsBvuzpOB27mf21upOb3aAiEAnr+ho5SFNwE21usJ1exJepAg+S5f52Q45smmpUnMwqQ="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_6.1.0-test.1577725119213_1577725132557_0.8202667073752135"},"_hasShrinkwrap":false},"6.1.0":{"name":"ts-toolbelt","version":"6.1.0","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"78a1de9d097fc5846aa3485f928c3416e3fa6a33","readme":"\n \n ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.1.0","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-8p9Yx3er2J6yEswBv4L9FhHyY8RA+WMoyrN0lPgdeHBVx1GytPaT1ZePXWYrFnJoVCWIRCcL6KFMA8c0TyqFyg==","shasum":"fd49a48d884a771e2595ab46058d43a8a44daa5b","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.1.0.tgz","fileCount":6,"unpackedSize":345977,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nOIiO\r\n=nxSi\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEQCIDnzfUaK26cnc3LeE+1Q7voz5z6KaQHcbTVelrOheVm9AiAnieYqbn4aqN/nflR/hxVojtCGgKQKnLc5iOmNYWP+Aw=="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_6.1.0_1577725310054_0.004618797842049105"},"_hasShrinkwrap":false},"6.1.1-test.1577725832381":{"name":"ts-toolbelt","version":"6.1.1-test.1577725832381","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"8d4c5e4ed88b7572cbf5727481d85c24dd43091e","readme":"\n \n ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.3.6-test.1583839547381","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-EQrhA/4tGXvS0SRNLBEtphwdLlMAYFBWg84GdIiK2duBwGC7A5wl+I9sPeyfx5WEL4u9n6AfWU2m2f4T7wbFDw==","shasum":"9d1d9becc56a3e9c187988296e821bbad4ef2559","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.3.6-test.1583839547381.tgz","fileCount":6,"unpackedSize":358352,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nCgzv\r\n=lVRa\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEQCIHLwvAjXw7XJVBPzZmjXj8Jcek1hsh9+tRTQjCX7MytWAiAk3PqNBimNyIsTilbg5jA1/aLwiOVKOgtO2aFayI1mdQ=="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_6.3.6-test.1583839547381_1583839564621_0.6394758373098866"},"_hasShrinkwrap":false},"6.3.6-test.1583854713634":{"name":"ts-toolbelt","version":"6.3.6-test.1583854713634","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"4f2f2d61b9181bcf10c46dc06ae5184050127427","readme":"\n \n ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.3.6-test.1583854713634","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-/xvQWeJVgEgfsUDdHceca42HIVmUtAsGFOs3pj/4iHQQucIhhwhbfKflBF4iNJdyeqwMNBOi21PB/V7u24KnLg==","shasum":"35a28dfee83f8767ae6d1dfa17e99e054c7ea6fc","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.3.6-test.1583854713634.tgz","fileCount":6,"unpackedSize":358352,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\njuXZ\r\n=qghX\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEYCIQCIa/8f2yEJRplRfd+zVMmkJK/wsvZYN07gcu4p8vA03AIhAIVAjSItT3WiBtpYdunLZR1PXDrV7OHWiHWYkvkfddeT"}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_6.3.6-test.1583854713634_1583854729586_0.00811457838550278"},"_hasShrinkwrap":false},"6.3.6-test.1583877557990":{"name":"ts-toolbelt","version":"6.3.6-test.1583877557990","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"4f2f2d61b9181bcf10c46dc06ae5184050127427","readme":"\n \n ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.3.6-test.1583877557990","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-VbchpGNBvTWQ+M0P2RqoH5OdlDaJW7sh0BCsdputVaw0xF7vhNhbmtYQwnMNE+pUosR6JsUhK/psIpn27Zb3bw==","shasum":"68a2574b9492e44df63c44f8a9512a1026239f2b","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.3.6-test.1583877557990.tgz","fileCount":6,"unpackedSize":358352,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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ts-toolbelt
\n Get the most out of TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8)\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** how to choose categories? match your type with the above categories\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, N, O, S, L, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n* Need to write the examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with the above categories.\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with the above categories.\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with the above categories.\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with the above categories.\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.4.0-test.1586530558932","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-VJUVMt/Y/U56UhrraglpYLC6bU89wk7NuhZYU+8Qh24pWXJtlQrdgQ0W4NoO7lDLQxlfpa3ThyUzt6djo5ey1Q==","shasum":"43edcfa60cbe6a5f1bb301037f36863988001b9d","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.4.0-test.1586530558932.tgz","fileCount":6,"unpackedSize":373458,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nuXdh\r\n=j4xH\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIQCd6taMPTjkVOeBjVMNx8yibBho/yB7jWE+PciggZaJuwIgb2ZR5CrIuMpBMHEYfnmyS6cdr42hxEiyxxaBv+L3Ve4="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_6.4.0-test.1586530558932_1586530581633_0.12676132270860885"},"_hasShrinkwrap":false},"6.4.1-test.1586532074169":{"name":"ts-toolbelt","version":"6.4.1-test.1586532074169","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"5122dcf1421edc55beecc9544553261cf02ab7e5","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with the above categories.\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with the above categories.\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with the above categories.\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with the above categories.\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with the above categories.\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"d8f0fa09a4e3110c9ef0086747dd39cda6fb6e2c","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is optional, but enable whenever possible \n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with the above categories.\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.7.1-test.1588969227099","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-29CucR3STRbzwlweYxeRE3yxFPBFXbJcvK0XFz7EBQJwyKW1XRLVHxfz9gIH2tiecRqFy35aWQ+m2NI6IIklng==","shasum":"b4aee7af4e526a32048d279351a43334c1494496","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.7.1-test.1588969227099.tgz","fileCount":6,"unpackedSize":152546,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\n0TKw\r\n=LmS/\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIE0HDtj3aSvugK7Rz11BkH/9tl+iNfEkNhh1O7D4LJwWAiEApudJA9fqqUzSVcQ2OzwJBnHF+ZtRZemFnnFghR0OKJY="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_6.7.1-test.1588969227099_1588969249183_0.7902480744903195"},"_hasShrinkwrap":false},"6.7.2-test.1588969772826":{"name":"ts-toolbelt","version":"6.7.2-test.1588969772826","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"aa2ec3e4c0a3cdcd3cee4336f89c3fa9d24037de","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.6.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is optional, but enable whenever possible \n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with the above categories.\n\n**The documentation is complete but needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md), and I will update the docs.\n\n### Imports\n\nThere are many ways to import the types into your project:\n\n* Explicit\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* Compact\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* Portable\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n ![](\"https://img.shields.io/badge/Code%20of%20Conduct-Contributor%20Covenant-green.svg\"){kind=icon}
\n \n \n ![\"Language](\"https://img.shields.io/lgtm/grade/javascript/g/pirix-gh/ts-toolbelt.svg?logo=lgtm&logoWidth=-2\"/)
\n \n \n ![\"Total](\"https://img.shields.io/lgtm/alerts/g/pirix-gh/ts-toolbelt.svg?logo=lgtm&logoWidth=-2\"/)
\n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n ![\"Fund](\"https://raw.githubusercontent.com/pirix-gh/ts-toolbelt/master/.github/donate.svg\")
\n \n \n ![\"Support](\"https://raw.githubusercontent.com/pirix-gh/ts-toolbelt/master/.github/patreon.svg\")
\n \n \n ![\"Fund](\"https://raw.githubusercontent.com/pirix-gh/ts-toolbelt/master/.github/issuehunt.svg\")
\n \n \n ![\"Join](\"https://raw.githubusercontent.com/pirix-gh/ts-toolbelt/master/.github/tidelift.svg\")
\n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.8.7-test.1589924198747","_npmVersion":"5.6.0","_nodeVersion":"10.0.0","_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"dist":{"integrity":"sha512-tYAbkzl7utSHiPYn8oWEx8NV9E1GfdG6GBu49FA+w1KMNSNeK8T+U4+yq8dp9lilz7Qwl/bryjcExV4qkyDVUQ==","shasum":"1eecea1b932e83438bce7267a4684492eacfc6d5","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.8.7-test.1589924198747.tgz","fileCount":6,"unpackedSize":421983,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nBB81\r\n=1xsH\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIEPr5S5MPcbgGAiGaD3QBrD+bjzClcm8p6YJmwOm5bnxAiEAjJd0KM4IZLKcQdKZiOrli2K8jTVR8tFcrAjA66iCFJM="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_6.8.7-test.1589924198747_1589924220907_0.9896901287072726"},"_hasShrinkwrap":false},"6.8.8-test.1589924321578":{"name":"ts-toolbelt","version":"6.8.8-test.1589924321578","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"8","@commitlint/config-conventional":"8","@typescript-eslint/parser":"1","eledoc":"0","eslint":"6","eslint-plugin-fp":"2","eslint-plugin-react":"7","husky":"3","npx":"10","sort-package-json":"1","standard-version":"7","ts-node":"8","tslib":"1","typedoc":"0","typescript":"next"},"gitHead":"08e349e170c977cfdef102b502e644a5915736ad","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n ![](\"http://isitmaintained.com/badge/resolution/pirix-gh/ts-toolbelt.svg\"/){kind=icon}
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\n \n \n \n \n \n \n \n ![](\"https://img.shields.io/badge/Conventional%20Commits-1.0.0-green.svg\"){kind=icon}
\n \n \n ![](\"https://img.shields.io/badge/CoC-Contributor%20Covenant-green.svg\"){kind=icon}
\n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.9.3-test.1590444761405","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-5QvJ61SHdWbjcwOhN6crXodIJX2QpnRS+oKVwUQWEQUYJavNYdgR5q9dSrv/9U7VhFNJdDNw8QfrDi93r6FNnw==","shasum":"6ad4eb2f8b8d29e1e8b1911017cc4f966f23ad2b","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.9.3-test.1590444761405.tgz","fileCount":6,"unpackedSize":424428,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\n4DrR\r\n=fxLt\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIElgi87Q6l+aW27L1vcARyrCKDPZFVyaT/9Tb7kBSsSCAiEAsLf6vN1HFa+qEFcMLqKSsakV8nWJDMtqJsGzQshVWx4="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_6.9.3-test.1590444761405_1590444780991_0.5476540864145902"},"_hasShrinkwrap":false},"6.9.4-test.1590444938413":{"name":"ts-toolbelt","version":"6.9.4-test.1590444938413","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"0d5f604d377f5fa5810280f6d719c581609d8897","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.9.4-test.1590444938413","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-XDZvPOeHnpRLZBr8BvZ0bO7FN3gck5vtT+YGrzKPlcCiGdxlmMf8QqOpU0GQbK+yRxF77ZiVpkVIAG0AZuAIUA==","shasum":"1a18b0941a0b9fbcf0f72dfd9bc9481707c2850a","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.9.4-test.1590444938413.tgz","fileCount":6,"unpackedSize":424661,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@7.0.0-test.1592428067604","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-5NKDADuqpH8bzavsfbuurgwqmQdVy43ViOAOGWRwqm378MvnKvF50b9O/2tBBJCdelosVwZZd0WWJHz129eDhw==","shasum":"07ff16c9e4e3bd1add069c92066c7b28afcb10fb","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-7.0.0-test.1592428067604.tgz","fileCount":6,"unpackedSize":430826,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nhhwM\r\n=CNvA\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEQCICJAuFQZTenVs1yv8pZppaEMnRHyzU+aOoq1BBozPkDpAiB1Ea232bgGcFPJrpORbZeY+aq5v7xTYuSKp876+DQyEA=="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_7.0.0-test.1592428067604_1592428087674_0.025303972469477687"},"_hasShrinkwrap":false},"7.0.0-test.1592471066483":{"name":"ts-toolbelt","version":"7.0.0-test.1592471066483","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"https://typescript.visualstudio.com/cf7ac146-d525-443c-b23c-0d58337efebc/_apis/build/builds/76664/artifacts?artifactName=tgz&fileId=8D3BE903E9CF24E4917DB55EBC42901FA1370E5A647552B239221DB9A3778F0302&fileName=/typescript-4.0.0-insiders.20200616.tgz"},"gitHead":"3d6f7cecbd20fc98a575b935d2d02282257d3991","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@7.0.0-test.1592471066483","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-EWgMOIUNHHv2U6na9hJi7JTnszOk6xTj2c++hRu2NN7Gxr+yNZAw7jwqAosbeSt+rzWhb9r2FEfubMlyt8JOJw==","shasum":"421bd96a38169f36c945e735bda82344416a5f34","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-7.0.0-test.1592471066483.tgz","fileCount":6,"unpackedSize":430719,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nhGng\r\n=e9bN\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEYCIQDAPzYiPlaAQ8E7rUZsfEDf9iEMbAwNB6cfiMH1uP+rlgIhAKC20oXyTkvNEj8xoktx7mNmSfdVJQJdhGvvvxFsglVV"}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_7.0.0-test.1592471066483_1592471086359_0.42989725024845615"},"_hasShrinkwrap":false},"7.0.1-test.1592471100026":{"name":"ts-toolbelt","version":"7.0.1-test.1592471100026","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"https://typescript.visualstudio.com/cf7ac146-d525-443c-b23c-0d58337efebc/_apis/build/builds/76664/artifacts?artifactName=tgz&fileId=8D3BE903E9CF24E4917DB55EBC42901FA1370E5A647552B239221DB9A3778F0302&fileName=/typescript-4.0.0-insiders.20200616.tgz"},"gitHead":"c7247b687cd938c88a566f7322771ed16b59e171","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@7.0.1-test.1592471100026","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-AgQphFAkOKXsKwwq4Nt+ifpV9+V66xLn4UCvg9RnUIp4uEg4DzzcSzTpA+ftMzuSIjOAfBIz0dulPI/IKrOkGg==","shasum":"686885fddcb094742f95457778d4c3d921949019","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-7.0.1-test.1592471100026.tgz","fileCount":6,"unpackedSize":431101,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nXfE1\r\n=u0EQ\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEQCIEldh7MNxT9Xc9VRM3kQ0e9cuWeFQCR6Vr+iJ9IRVyfQAiBNQbX3s6mj7SCUUiiMt4AIc6tdov/Jitq2QcM1hqZYMA=="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_7.0.1-test.1592471100026_1592471119486_0.04858847010848533"},"_hasShrinkwrap":false},"6.9.7-test.1592471721140":{"name":"ts-toolbelt","version":"6.9.7-test.1592471721140","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"4f3a036f5fbc04037febdbdb64cf095e57f8bd19","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.9.7-test.1592471721140","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-ldk1WxtDPy1Zb7+t7izXI1Fx+uH0KjjipggW/ZNy8iQgqZN9kgIthZiaGhcgOe0AbIPAZ1TTHWmBk/QCwOET8g==","shasum":"c59965950be36cef37cf699b8d2a099683172aaa","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.9.7-test.1592471721140.tgz","fileCount":6,"unpackedSize":425488,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"https://typescript.visualstudio.com/cf7ac146-d525-443c-b23c-0d58337efebc/_apis/build/builds/76664/artifacts?artifactName=tgz&fileId=8D3BE903E9CF24E4917DB55EBC42901FA1370E5A647552B239221DB9A3778F0302&fileName=/typescript-4.0.0-insiders.20200616.tgz"},"gitHead":"8d3de4cda1432172634f4f86426081a7c735b4b2","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@7.0.2-test.1592476063059","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-skuaP2cO/nGbkzleI4BguHo/5jmY0D2Gcf+Ipkkwi0NAfQxghO9OnCgCgjI1ReqN+oAFOOi1pDBSpr67AOP1rw==","shasum":"caa99b1d106cee64c97eb4db0a696d08386bbb24","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-7.0.2-test.1592476063059.tgz","fileCount":6,"unpackedSize":431175,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nxEoE\r\n=o7kv\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIDplN5xGNmf5rxBwboe1S39ovgAQS7XDhOiCYaYjB7L7AiEAhidllGaGLp4iRm0u0mTxIKWgmkWvX0ZzffamdsA7Uec="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_7.0.2-test.1592476063059_1592476082617_0.8921785509234266"},"_hasShrinkwrap":false},"6.9.8-test.1592477329982":{"name":"ts-toolbelt","version":"6.9.8-test.1592477329982","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"5f8735ba59935a10e2014b460411019894973d22","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.9.8-test.1592477329982","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-4u0bAp8JuCgDezVyqNCK4ktSvXKNfrr+vE0hKMRnEJwzSChiysvrJ7NP83NHiuI+df3QEQDysWANkK/z2WgPzA==","shasum":"33c47bfe7c7155244bd6868000bc95d3d98adf5c","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.9.8-test.1592477329982.tgz","fileCount":6,"unpackedSize":425558,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"9054f958a39179a2ea7ca6d5c422bc06e2a8e047","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"ede689c2441235aac5118de112bb56354e6d2a31","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"7f0ee8638aa758e7e3b50f4e5cfc341e0e94c52f","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"dba087d70d5db10ebf46f3366d631a406f258fe7","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"bc511ac94e4482d2495c4f4a3b5de7d93d6429b6","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.10.4-test.1594303670274","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-4wVYRJqRpg8JqvU0HofiZ75woU5RLuYx7fO//0Zl6IUsjsOOEhiO1+QzKsxnPvaDw6NMmWbukzDXafoqK5Liag==","shasum":"a932851b0644fa5d46dbd0315448d97ebc9325df","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.10.4-test.1594303670274.tgz","fileCount":6,"unpackedSize":428893,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\n6Rvg\r\n=40KC\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIQCqTVy56UB7ESNGNw0QMhCLi8KN9JqBtp7yxvcW5XzQnAIgIwnig9EIhtHndLAGYh9dvRiM1HbLpHTHhN5r+8Khs7E="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_6.10.4-test.1594303670274_1594303691311_0.19612671944862625"},"_hasShrinkwrap":false},"6.10.5-test.1594306123351":{"name":"ts-toolbelt","version":"6.10.5-test.1594306123351","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/pirix-gh/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/pirix-gh/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/pirix-gh"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"de1f226d81904f7959d7c33b11a8461002b01014","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n","readmeFilename":"README.md","bugs":{"url":"https://github.com/pirix-gh/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.10.5-test.1594306123351","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-InF2Y2q50lPHY2a6Tlh9ojFiwKZhnMUbg+QdURGDIyqQL77eHa2EJEBG4zLwEUysoEUsgHHX3o6xvCt3OdUF/Q==","shasum":"b7a3c9395ea7562f61cccaf84f8a2f5263396ab5","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.10.5-test.1594306123351.tgz","fileCount":6,"unpackedSize":429257,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"bdaf18bb44af32b3ae989a57cb409cc7db0b480c","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"e4eddf50bb0b1a7826be979882e71a68a83430f4","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"0be366be581d74ee3cb4adbd4440f2ae3bb30a6b","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"01838021e907a256d011ddc9bc30203a71c2bfd9","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"7fecab32e5c388b42a9ac4d1055fd30418d33dcf","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"ec1aba0779dbf64553c560dff589720715a4fa2a","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"e0d309e730ebe45ba85c58920daf7ae5d3062faa","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"8a8890c61276a5821ac5eea85966d5571ffe7555","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"32962df11fa546b3187f7167678c20f5e7fb3361","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"37249c6c77f26d364ccbf5780c7a7e6cf5b3ddd2","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"1d639335ba2ae5602bcc14046fd14c4ceecd2ad6","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"19669d9eac404efa9ace290acba7cab1c4142fdd","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"d77fe1463d50ab45db3faafccee87d73b8405991","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/pirix-gh/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://pirix-gh.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://pirix-gh.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/pirix-gh/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/pirix-gh/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://pirix-gh.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://pirix-gh.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/pirix-gh/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/pirix-gh/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/pirix-gh/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/pirix-gh/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/pirix-gh/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/pirix-gh/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"4f782dc53c472ab491fd0a7cc3d3672ee7b2ddba","readme":"![\"logo\"](\"https://raw.githubusercontent.com/millsp/ts-toolbelt/master/.github/logo.png\" "\\"ts-toolbelt\\""){kind=logo}
\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
\n
\n \n \n \n \n ![](\"https://img.shields.io/travis/millsp/ts-toolbelt.svg\")
\n \n \n \n \n \n ![\"Language](\"https://img.shields.io/lgtm/grade/javascript/g/millsp/ts-toolbelt.svg?logo=lgtm&logoWidth=-2\"/)
\n \n \n ![](\"http://isitmaintained.com/badge/resolution/millsp/ts-toolbelt.svg\"/){kind=icon}
\n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n ![\"Donate\"](\"https://raw.githubusercontent.com/millsp/ts-toolbelt/master/.github/donate.svg\")
\n \n \n ![\"Support](\"https://raw.githubusercontent.com/millsp/ts-toolbelt/master/.github/patreon.svg\")
\n \n \n ![\"Fund](\"https://raw.githubusercontent.com/millsp/ts-toolbelt/master/.github/issuehunt.svg\")
\n \n \n ![\"Join](\"https://raw.githubusercontent.com/millsp/ts-toolbelt/master/.github/tidelift.svg\")
\n \n
\n ![](\"https://raw.githubusercontent.com/millsp/ts-toolbelt/master/.github/demo.gif\")
\n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://millsp.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n ![](\"https://raw.githubusercontent.com/millsp/ts-toolbelt/master/.github/issuehunt.png\")
\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"cdc1b7cefc39e1869a71edc948ade36308d8bfdf","readme":"\n \n ts-toolbelt
\n ๐ท Higher Type Safety for TypeScript. A collection of useful type utilities.
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from 'ts-toolbelt'\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.MergeUp<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, 'name'}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n\n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [MergeUp](https://millsp.github.io/ts-toolbelt/modules/_object_mergeup_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from 'ts-toolbelt'\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from 'ts-toolbelt'\n ```\n\n* **Portable**\n ```ts\n import tb from 'ts-toolbelt'\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from 'ts-toolbelt'\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m 'feat(name): Added this CoolFeature'\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from 'ts-toolbelt'\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"5af91aac238e3242f31c64e51ddc98dd15119390","readme":"\n \n ts-toolbelt
\n Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"71c850488d90020a1cc0f9806455cef0dcd6ab11","readme":"\n \n ts-toolbelt
\n Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"c66d72e6dba2b0ccb7b6ce8d85d1090fadb7b920","readme":"\n \n ts-toolbelt
\n Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.3-test.1594832770423","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-aOp5wNDEXvmWMPnmboNdwFZNXLD7M1+v2PCnJz66cQZCRhTn9gZN1YgXaFMEBfPP/Vw7SiH5928IOV+/fWnJCQ==","shasum":"a89128a881083f4c60a7177f26c6ca87f4a41c26","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.3-test.1594832770423.tgz","fileCount":6,"unpackedSize":437078,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"2c3c1f47a0a30ae654afdc41774327b35d45398a","readme":"\n \n ts-toolbelt
\n Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.4-test.1594833294711","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-R+3HLttEHSsejwxqY4lbG0IYHRpGM0ZL8kMv25xZjZsQnu9Lgw9SAvkK3IrXMn6UUmaGaLkewnY0g7rlpGNIvQ==","shasum":"30c2d9ebcb06244b388aabd6bea88e2b98e6b163","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.4-test.1594833294711.tgz","fileCount":6,"unpackedSize":437060,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"f7b8463b1f4229f764431a71e6362928edfc6c59","readme":"\n \n ts-toolbelt
\n Higher Type Safety for TypeScript. A collection of useful type utilities.
\n
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.5-test.1594841518492","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-hshI8kI/hmO0yWo0aYWkg8rbYI0dy9E+eLSas4dvIi7ACmSpBw0ieU/XSF3/WY3Z2DoHwkpc/BjVeOB+MQ2ScA==","shasum":"c72ab598a00c69cb6057e361186225884809133d","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.5-test.1594841518492.tgz","fileCount":6,"unpackedSize":437318,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nMF9V\r\n=fN+3\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEYCIQDVZhsOYcnlGLgBWZwZhQ9YOljzPuMpBE4W3Mtw/hPsRgIhAIZc3xCFXl+XmTJQId5AQ3cn2eC5GxhcJIdEniiugMEG"}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_6.13.5-test.1594841518492_1594841530891_0.9432742444882396"},"_hasShrinkwrap":false},"6.13.6-test.1594848698379":{"name":"ts-toolbelt","version":"6.13.6-test.1594848698379","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/millsp/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/millsp/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"b8e2dcf850b7845197ea239fdb881718aebf1bbc","readme":"\n \n ts-toolbelt
\n Higher Type Safety for TypeScript. A collection of useful type utilities.
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\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|-----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n| [Either](https://pirix-gh.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://pirix-gh.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://pirix-gh.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://pirix-gh.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://pirix-gh.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://pirix-gh.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://pirix-gh.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://pirix-gh.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://pirix-gh.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://pirix-gh.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://pirix-gh.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://pirix-gh.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://pirix-gh.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://pirix-gh.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://pirix-gh.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://pirix-gh.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://pirix-gh.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://pirix-gh.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://pirix-gh.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://pirix-gh.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://pirix-gh.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://pirix-gh.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://pirix-gh.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://pirix-gh.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://pirix-gh.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://pirix-gh.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://pirix-gh.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://pirix-gh.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://pirix-gh.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://pirix-gh.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.6-test.1594848698379","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-ICB1uh1oupMQI8YA4QLioBIKqkRpRQ6LUGwe6RkLOBVQ0miS6hZ65eaKh3IwzLuQB/ZbdJXacbHfRQnFVCGn2w==","shasum":"e192fc8df701c58ad55c5ba10acb5a82f5ba9647","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.6-test.1594848698379.tgz","fileCount":6,"unpackedSize":437914,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"94fad024f6288c4bb940f06bab8e8b52871dbe2c","readme":"\n \n ts-toolbelt
\n Higher Type Safety for TypeScript. A collection of useful types.
\n
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n
\n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n \n \n \n \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n \n \n \n \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n \n \n \n \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n \n \n \n \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n \n \n \n \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n \n \n \n \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n \n \n \n \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n \n \n \n \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n \n \n \n \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n \n \n \n \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n \n \n \n \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n \n \n \n \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n \n \n \n \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n \n \n \n \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n \n \n \n \n \n \n ๐ Read Docs\n ยท\n ๐ฎ View Demo\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n\n> **`TIP`** If you don't find the type you are looking for, you are welcome to open a [feature request](https://github.com/millsp/ts-toolbelt/issues/new?template=---feature-request.md)!\n\n## ๐ Getting Started\n\n### Prerequisites\n\nLowest TypeScript [support](#-compatibility) starts at v3.5\n\n```sh\nnpm install typescript@^3.8.0 --save-dev\n```\n\nFor best results, add this to your `tsconfig.json`\n\n```ts\n{\n \"compilerOptions\": {\n // highly recommended (required by few utilities)\n \"strictNullChecks\": true,\n\n // this is optional, but enable whenever possible\n \"strict\": true,\n\n // this is the lowest supported standard library\n \"lib\": [\n \"es2015\",\n ],\n }\n}\n```\n\n### Installation\n\n```sh\nnpm install ts-toolbelt --save\n```\n\n### Hello World\n\n```ts\nimport {Object} from \"ts-toolbelt\"\n// Check the docs below for more\n\n// Merge two `object` together\ntype merge = Object.Merge<{name: string}, {age?: number}>\n// {name: string, age?: number}\n\n// Make a field of an `object` optional\ntype optional = Object.Optional<{id: number, name: string}, \"name\"}>\n// {id: number, name?: string}\n```\n\n> **`TIP`** You can also grab the demo [over here](https://gist.github.com/millsp/f7f7d18773f79bf0618fb5cd55bd48f8).\n\nYou can [**level-up, and re-code this library from scratch**](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab).\n\n## [๐ Documentation โคข](https://millsp.github.io/ts-toolbelt/)\n\n### Where to start\n\nTo get you started, we recommend that you visit the documentation of the following essential tools. \n| Object | List | Function | Any | Union |\n|---------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|\n| [Either](https://millsp.github.io/ts-toolbelt/modules/_object_either_.html) | [Append](https://millsp.github.io/ts-toolbelt/modules/_list_append_.html) | [NoInfer](https://millsp.github.io/ts-toolbelt/modules/_function_noinfer_.html) | [Compute](https://millsp.github.io/ts-toolbelt/modules/_any_compute_.html) | [Filter](https://millsp.github.io/ts-toolbelt/modules/_union_filter_.html) |\n| [Exclude](https://millsp.github.io/ts-toolbelt/modules/_object_exclude_.html) | [Concat](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html) | [Parameters](https://millsp.github.io/ts-toolbelt/modules/_function_parameters_.html) | [Promisable](https://millsp.github.io/ts-toolbelt/modules/_any_promisable_.html) | [IntersectOf](https://millsp.github.io/ts-toolbelt/modules/_union_intersectof_.html) |\n| [Filter](https://millsp.github.io/ts-toolbelt/modules/_object_filter_.html) | [Drop](https://millsp.github.io/ts-toolbelt/modules/_list_drop_.html) | [Promisify](https://millsp.github.io/ts-toolbelt/modules/_function_promisify_.html) | [Type](https://millsp.github.io/ts-toolbelt/modules/_any_type_.html) | [Merge](https://millsp.github.io/ts-toolbelt/modules/_union_merge_.html) |\n| [Merge](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html) | [Flatten](https://millsp.github.io/ts-toolbelt/modules/_list_flatten_.html) | [Return](https://millsp.github.io/ts-toolbelt/modules/_function_return_.html) | | [Select](https://millsp.github.io/ts-toolbelt/modules/_union_select_.html) |\n| [NonNullable](https://millsp.github.io/ts-toolbelt/modules/_object_nonnullable_.html) | [Pop](https://millsp.github.io/ts-toolbelt/modules/_list_pop_.html) | | | [Strict](https://millsp.github.io/ts-toolbelt/modules/_union_strict_.html) |\n| [Nullable](https://millsp.github.io/ts-toolbelt/modules/_object_nullable_.html) | [Prepend](https://millsp.github.io/ts-toolbelt/modules/_list_prepend_.html) | | | |\n| [Omit](https://millsp.github.io/ts-toolbelt/modules/_object_omit_.html) | [Remove](https://millsp.github.io/ts-toolbelt/modules/_list_remove_.html) | | | |\n| [Optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html) | [Reverse](https://millsp.github.io/ts-toolbelt/modules/_list_reverse_.html) | | | |\n| [Overwrite](https://millsp.github.io/ts-toolbelt/modules/_object_overwrite_.html) | [Tail](https://millsp.github.io/ts-toolbelt/modules/_list_tail_.html) | | | |\n| [P/Merge](https://millsp.github.io/ts-toolbelt/modules/_object_p/merge_.html) | | | | |\n| [P/Omit](https://millsp.github.io/ts-toolbelt/modules/_object_p/omit_.html) | | | | |\n| [P/Pick](https://millsp.github.io/ts-toolbelt/modules/_object_p/pick_.html) | | | | |\n| [P/Update](https://millsp.github.io/ts-toolbelt/modules/_object_p/update_.html) | | | | |\n| [Path](https://millsp.github.io/ts-toolbelt/modules/_object_path_.html) | | | | |\n| [Pick](https://millsp.github.io/ts-toolbelt/modules/_object_pick_.html) | | | | |\n| [Readonly](https://millsp.github.io/ts-toolbelt/modules/_object_readonly_.html) | | | | |\n| [Required](https://millsp.github.io/ts-toolbelt/modules/_object_required_.html) | | | | |\n| [Select](https://millsp.github.io/ts-toolbelt/modules/_object_select_.html) | | | | |\n| [Unionize](https://millsp.github.io/ts-toolbelt/modules/_object_unionize_.html) | | | | |\n| [UnionOf](https://millsp.github.io/ts-toolbelt/modules/_object_unionof_.html) | | | | |\n| [Update](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html) | | | | |\n| [Writable](https://millsp.github.io/ts-toolbelt/modules/_object_writable_.html) | | | | |\n\n> **`TIP`** [Add something to this list](https://github.com/millsp/ts-toolbelt/edit/master/README.md)\n\n**The documentation is complete but it needs more examples**. So feel free to [ask for examples](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n### Imports\n\nThe project is organized around TypeScript's main concepts:\n\n| | | | | | |\n|------------|-------------|------------------|--------------|---------------|----------|\n| **A**ny | **B**oolean | **C**lass | **F**unction | **I**teration | **L**ist |\n| **N**umber | **O**bject | **O**bject.**P** | **S**tring | **U**nion | Test |\n\n> **`TIP`** How to choose categories? Match your type with them.\n\nThere are many ways to import the types into your project:\n\n* **Explicit**\n ```ts\n import {Any, Boolean, Class, Function, Iteration, List, Number, Object, String, Union} from \"ts-toolbelt\"\n ```\n\n* **Compact**\n ```ts\n import {A, B, C, F, I, L, N, O, S, U} from \"ts-toolbelt\"\n ```\n\n* **Portable**\n ```ts\n import tb from \"ts-toolbelt\"\n ```\n\nYou can also import our non-official API from the community:\n ```ts\n import {Community} from \"ts-toolbelt\"\n ```\n\n> **`TIP`** The community API is for our community to publish useful types that don't see fit in the standard API.\n\n### Internal Docs\n\nIf you're interested to **learn** how the internals work, [this tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab) will get you on track to start writing your own types.\n\n### [Archives โคข](https://github.com/millsp/ts-toolbelt/tree/gh-pages)\n\nAccess older docs at https://millsp.github.io/ts-toolbelt/version/\n\n> **`EXAMPLE`** https://millsp.github.io/ts-toolbelt/4.2.1/\n\n## [๐ง Good to Know โคข](https://github.com/millsp/ts-toolbelt/issues?q=label%3Aquestion+sort%3Areactions-%2B1-desc+label%3Awiki)\n\nIn this wiki, you will find some extra resources for your learning, and understanding.\n\n**Are you missing something?** Participate to the open-wiki by [posting your questions](https://github.com/millsp/ts-toolbelt/issues/new?template=---question.md).\n\n## [๐ฃ Announcements โคข](https://github.com/millsp/ts-toolbelt/issues?utf8=โ&q=is%3Aissue+label%3Aannouncement+sort%3Acreated-desc+)\n\nStay up to date with the latest announcements with this regular digest of important changes.\n\n## ๐ Contributing\n\nContributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. There are many ways to contribute to the project:\n\n### Community\n\n* [Help the community with answers on Gitter](https://gitter.im/ts-toolbelt/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)\n* [Reporting bugs or requesting new features](https://github.com/millsp/ts-toolbelt/issues/new/choose)\n\n### Codebase\n\n* Improving existing documentation \n* Adding new types to the collection\n* [Getting involved with things to do](#-whats-next)\n\n### Pull Requests\n\n1. [Read the tutorial](https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab)\n\n2. Fork the project\n\n3. Clone your fork\n\n4. Create a pr/**feature** branch\n\n ```sh\n git checkout -b pr/CoolFeature\n ```\n \n5. Commit your changes\n\n You **must** follow the [conventional commit](https://conventionalcommits.org) to be able to commit\n ```sh\n git commit -m \"feat(name): Added this CoolFeature\"\n ```\n\n6. [Run the tests](#-running-tests)\n\n7. Push your changes\n\n ```sh\n npm run release -- --no-tags\n ```\n\n8. Open a pull request\n\n## ๐ Running tests\n\n### For this project\n\nTo run the `lint` & `type` tests, simply run:\n\n```sh\nnpm test\n```\n\n### For your project\n\nWant to test your own types? Let's get started:\n\n```ts\nimport {Number, Test} from \"ts-toolbelt\"\n\nconst {checks, check} = Test\n\nchecks([\n check \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n *\n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n *\n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n *\n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n *\n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n \n \n \n \n \n \n ๐ Documentation\n ยท\n ๐ฃ Announcements\n ยท\n ๐ Report Bug\n ยท\n ๐ฉ Request Feature\n ยท\n ๐ค Ask Questions\n \n \n \n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fmillsp%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.7-test.1594904316672","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-cFSvmnq+mcvPxkEm/RKquISvACrEEaDdiZgTmU6ghzkFe9tNlWmoRB3RsmKzzCd0wIQxZ5nn4GewEHkLxEWGvw==","shasum":"7c8216d5e2d7b00bf51a3df92f4be0dbc0881145","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.7-test.1594904316672.tgz","fileCount":6,"unpackedSize":438052,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nBPtC\r\n=1+59\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIENoiUJ6sMJYufgAkjIKCIHtVE3GJmprjG3c78SLmGKoAiEA/7uAheXCq8ujGnXpAebkjw0ShfoktzSWxv+BxNgJGq8="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_6.13.7-test.1594904316672_1594904330601_0.7780069922582971"},"_hasShrinkwrap":false},"6.13.8-test.1594904910732":{"name":"ts-toolbelt","version":"6.13.8-test.1594904910732","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/millsp/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/millsp/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"43542e4d3cef4eed146ff89184380e608ef83867","readme":"\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fmillsp%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.8-test.1594904910732","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-+HSO5dVSWoT/cXCiwFo8Wj3HY+15wFeu2B8xC9OpnBVqzaS2cfoUWxKmhdoznGSEQIoD0XhIacveRwBtGU/ydA==","shasum":"f1fc91762d56865738b075a8b17088e286548302","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.8-test.1594904910732.tgz","fileCount":6,"unpackedSize":438258,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nDvZ0\r\n=TiuZ\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEQCIBF1AY4KdLqPCFqlmt8+bBcBP7Y7TPeAy6fDaVW5NfuhAiBIOm5hah/bdLavVkFhwa2TpCCc8f8axJaKBgYfp+65yw=="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_6.13.8-test.1594904910732_1594904923003_0.38787027577498057"},"_hasShrinkwrap":false},"6.13.10-test.1594906276080":{"name":"ts-toolbelt","version":"6.13.10-test.1594906276080","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/millsp/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/millsp/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"3004a93f1e0a645d90f0f232bd9aae7b706ec803","readme":"\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.10-test.1594906276080","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-TC9Ea0wmyxIv1WOaZIRenyEkptAfHAKtjvagpaf2U+1Hjg9dS7PxvXiTUhZGPrxxzmvh0Y09nA4cJkBr5AiOeA==","shasum":"088bb6c95f0ee03c1b66a41bb4b6578d19dc97cf","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.10-test.1594906276080.tgz","fileCount":6,"unpackedSize":439000,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\n9j9l\r\n=Stuw\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCICIUt7q6gZg0p4N0BLw0BhQCGMN+R0P5ViSSmaFmSAK/AiEAj9+MTHvY1c9vTQ37gT9daEGV2f/KW2qesZi0+hU6wso="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_6.13.10-test.1594906276080_1594906290290_0.05585482930137031"},"_hasShrinkwrap":false},"6.13.11-test.1594906424303":{"name":"ts-toolbelt","version":"6.13.11-test.1594906424303","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/millsp/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/millsp/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"8df7c68e7595ccfe3a29ef85cfc381034d8b11d6","readme":"\n
\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.11-test.1594906424303","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-h3QaGcn2AygtLXbz+6a8/Y2B2jyJ166CmMIbxMrxLtRU7FNfCPpYNFyr9fqspAVyeczk6+JVZY51A6fpSb17hg==","shasum":"f1c3a4695e7df43ab19d90381a99ae91d3c66e2c","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.11-test.1594906424303.tgz","fileCount":6,"unpackedSize":439222,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.12-test.1595260759175","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-HzJaSXvnkgGQ9FDVTs20g5GT55vEAYoaRwQlNuKq2EKbLwYGYR5O4vn/jguH/WqMAIbaEj22s4HbAN85gH66Wg==","shasum":"7e82d2ab117bcd77269eb7f8e100487b8fdc44d3","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.12-test.1595260759175.tgz","fileCount":6,"unpackedSize":439895,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"538a2e91835ee551c50dd0a5380d4e49f068462b","readme":"\n
\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.13-test.1595264322969","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-l+BdMabZETOspSeJs4b0kMnkMdBCvy7uJA7RPbOIwf0XX2VLchNxWYf1DYo8qA0RSTVqNhetouJu2bHdAWcG5g==","shasum":"c534bdd0ead1046d7bd45afa99f7de6db1fb1b8e","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.13-test.1595264322969.tgz","fileCount":6,"unpackedSize":440291,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.14-test.1595266853397","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-oC2+5JM+5EiVD6Ux1EHBrOyt34R1zXTUCf0l4TferNkdfHXZAohlmtHjNX2UwjfFTZhGqTjS59Z776QiYKb9hg==","shasum":"59719b4f7e733a2deb2125a53f7992ff376af06a","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.14-test.1595266853397.tgz","fileCount":6,"unpackedSize":440786,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.15-test.1595267799681","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-dFEGAfnOt1nQq5tsh0R3D6Db2VKxSvXr/IOQlbPU96Ub8CTtHenr5AjCIPAWzK7aKGPnT0DpS/xmFpJxhhvvqg==","shasum":"1adff8080102639d5991e8f58499de703f7e7fc0","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.15-test.1595267799681.tgz","fileCount":6,"unpackedSize":441132,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.16-test.1595337622689","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-HkuPNvLOaoTKuv6wUX/sHdDZvn9XQk057qlLsEfaxmQ6DIZZfPIwJfRoXlnqLrGM8bJJonaMd1JgcDh6qrhsgA==","shasum":"44121e118b1aa76df58a64c904984ffc4d9e0eec","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.16-test.1595337622689.tgz","fileCount":6,"unpackedSize":441465,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.17-test.1595341460555","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-lFJOh5H996WBM2faiASLrRqEvBm82q1fSjid8mK0799Gi7oSPNG+kjWTUgNXcEohcFXFSGC+o0MUFVfUukZ3+g==","shasum":"4a692f2d3813963d099d0103973806547e3d418b","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.17-test.1595341460555.tgz","fileCount":6,"unpackedSize":441690,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"8f1b39b294cf1b8e4b47ef9fca8d4b58fb774596","readme":"\n
\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.19-test.1595344044898","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-is9r4NePsBQJnMuhwcCF5CGb2yrKaciznN/DfrMEypH1sQOKIoGHrP4w8jv6POWBgwMZv0ANey/+LLTbLNOdSw==","shasum":"529d68139bb83e52afbb9ec90da472674c4d3b47","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.19-test.1595344044898.tgz","fileCount":6,"unpackedSize":441690,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"f1b2003fc92d9a887e20fd17b5a2b286cf52d422","readme":"\n
\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.20-test.1595370466255","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-lVgUzh3I/m9wvQ9svjcRSOP/WesO553io6nWPzilNkmEVV7no8XCv0TLvcwdQxaBP6GOWufM6ay3d3C18MST+g==","shasum":"6816b8246bcf0c2e22a248b2c8d1ab173a2cc94b","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.20-test.1595370466255.tgz","fileCount":6,"unpackedSize":441764,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nVvzE\r\n=EHwL\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIQCeQnkEchpNqn+SwtGj5hG3C6c6rNQlbOvdxrhPiFoagwIga46sT+FKnYYi0t3/01Zl5OfdU9+YJCN2Ux1HdFkhGMg="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_6.13.20-test.1595370466255_1595370484659_0.6565005214258448"},"_hasShrinkwrap":false},"6.13.21-test.1595373209931":{"name":"ts-toolbelt","version":"6.13.21-test.1595373209931","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/millsp/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/millsp/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"next"},"gitHead":"39b95dff7371b7a324a3052f5c4e9355ff7e6c57","readme":"\n
\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.21-test.1595373209931","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-UtB4JmWMATDlFy0i6/4DJwLILagIoRtei2l3hoo4WYunl2s9Xn+WlIoslUeO9w95/Tgl7G0nSm+V0CZBdUTvLg==","shasum":"d57230b6c1eacbe3d8032798e6654f116ad979bd","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.21-test.1595373209931.tgz","fileCount":6,"unpackedSize":441761,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"next"},"gitHead":"eb967a273de2e175ecb0e15af11675c654899290","readme":"\n
\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.23-test.1595538244428","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-tbPXp1icBxqUshS+98SzXYrvbMlQLWsMCEbCIHNowLq5/3+3Q11YjqQJxIpeNlp/nG3HWvXGTxF9pdkBgZeLag==","shasum":"30a7368b990f80853cd7ac54bac0f6f79d1853a4","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.23-test.1595538244428.tgz","fileCount":6,"unpackedSize":440574,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nUga3\r\n=XyTu\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIQDTZZ9Xer9Th9qy9PObYu4L01QFchH7Hnk1LyujjYRvHAIgRFUs5IR6aI/mwHV/ckqwA789Bb0vmPrj+0kOCkI3qNw="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_6.13.23-test.1595538244428_1595538257644_0.7236288188822517"},"_hasShrinkwrap":false},"6.13.24-test.1595539145548":{"name":"ts-toolbelt","version":"6.13.24-test.1595539145548","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/millsp/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/millsp/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"next"},"gitHead":"efc3325548bc3f8d69fff9e8b3a5fa1d88eaf7f4","readme":"\n
\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.24-test.1595539145548","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-V8Nr7xMAhCN/AVhkGx8kgvCQonnFbpl4xb6SktGJKT9WRXkocBFDp0WqBa0N50jA+QIbOWphIyhopjxXwsULbQ==","shasum":"9e33bd35ec9462d810a3a980f89d80aeeca643f5","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.24-test.1595539145548.tgz","fileCount":6,"unpackedSize":440821,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"next"},"gitHead":"b9d138e6d2e49dcc1a97c47ca59623333eb4feda","readme":"\n
\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.25-test.1595590191540","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-88TpWewzb3Hb6IdY051d8qVSAvfateBDiLDSRB3NH4t4CfZjb+vICJvDac5+woDT7317o9SAJPJZWXeFEnyZ/w==","shasum":"b770b8ea6838987808109a011f9e7533ec075916","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.25-test.1595590191540.tgz","fileCount":6,"unpackedSize":440953,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\ncJga\r\n=MgKl\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIQCEzOGTOfS+6vlNBpgkoiMjxiWB2Av/aiIFBtiTE2eNfAIgZPBusjZknTxfX4/OcCdOlqL2gn4nQjSWQO7PLvfErz4="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_6.13.25-test.1595590191540_1595590205077_0.9438844210781829"},"_hasShrinkwrap":false},"6.13.26-test.1595591045487":{"name":"ts-toolbelt","version":"6.13.26-test.1595591045487","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/millsp/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/millsp/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"latest"},"gitHead":"7f30483973ed32f461152eed2b7b20af435bb1b7","readme":"\n
\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.26-test.1595591045487","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-hhE+aHxa5LOITEuYVB/nVQSobZyTryUsgdSCCDakAvKF4H7xpgNTNVatF0cmkUCG1ECHKMhvcW3Jcw2vgXHMLQ==","shasum":"484da7b4728b93c77d5a1ffb03b2b793a1469faf","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.26-test.1595591045487.tgz","fileCount":6,"unpackedSize":440907,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n\r\nwsFcBAEBCAAQBQJfGsmVCRA9TVsSAnZWagAAbAsP/RptWT3Q6dcCR8gQAfFk\nnlUzUd9dZYIlPB21rARYPY/8GWKIvjpy3RFPAsmIPTw0P0W/GvqUJeDjG6eq\nRFES4f6xA0YBFK2CM8i3eywHwnaG0uHcf4JKBYPZXKbwSGB28JmvakOFLtrW\n460PNf445XmA8x0LdIJQKI/GWJBUiYrkSD7YypjH+NYp8ge+h3wXJRXaHtQh\n5iComB1xw9G7aJQxYrm7BwFGQWkLt6XzbnwaO2asSTwaY/dmYecYDFKhQx9u\nIa75yW2dM12JhO4hahJJtPWbGcIhKHl/+ve61pUZmZkPIxo4CRI64DwqRk9z\nX6d1OLTnNwmyTZwyUid7/eRr29hiMbGO9uU3E2wdUNBd9RAxrbf3tQUVJSSv\n3sahwHyKo7xGd9ga6+Hp8MPsy0/9+Fs488bXyvM41+Z3Zw2nbnoiB5nCv2jK\nlu6NXWom/w6EzrbnJBNR72MSIDSTg8xKvPgdlMlcDawfoHR1el16hyUKVPCs\nZryDRIGu6r1UYKayGa61axKM3T229V/N8FMjB/SDtmSccXnNKzDrSs9VRcUC\nx2ZClrm4uzSTDCY+Cr1DIpf6bRe7I32hHQ3jxke/KP+Rb/tFe0gU4H09Nmor\nYW7mQS2bIIE2pz67uJq8BxUz0YIT9fReOC9lpqkM2h95W5Xk2GZaX97g/NFi\n0xdN\r\n=rnNq\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIQCvjInkK5GLcZW4SYvm+yiIEERoY0bYdkqXSCa1uuNntwIgD+odU2iyIUhXN0+ulUg9ZZvPrSJGo0NaOS47sGJCMvI="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_6.13.26-test.1595591045487_1595591060306_0.941450327015152"},"_hasShrinkwrap":false},"6.13.27-test.1595602929680":{"name":"ts-toolbelt","version":"6.13.27-test.1595602929680","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/millsp/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/millsp/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"next"},"gitHead":"c666786a9e07995578b5bbb5360972751c3546d2","readme":"\n
\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.27-test.1595602929680","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-SCLJo1gY7rPLu1at+EZLLkLNvNvzNZyjkT4RKo4YSjdQ1qoPErqvrxpleowU1VR1QR9Zp2xUfWrwgi4L/yti/g==","shasum":"bd824ba0d297cb65b1268768e2723e8ccd2d4f8d","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.27-test.1595602929680.tgz","fileCount":6,"unpackedSize":440879,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"next"},"gitHead":"94b2b6d8ccbbc0754c9ce9ba32ce6540a3971d3e","readme":"\n
\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.28-test.1595611281976","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-t9bgiN/4Q7YuStD36PBjrGHIKhbp10oxAkX37KhjnyJkbDcHPKaoaJGUyfTfs8stIXi25w8lihiGy/jFgLOcOA==","shasum":"f96391d57246cbe142781496651ae3e2ef4a5e34","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.28-test.1595611281976.tgz","fileCount":6,"unpackedSize":440996,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.29-test.1595783480057","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-tZaXqWdTZj3jmgWGHBVS/hReRNlOebJjK08VuZQuypUKOlLJpnJIFRnu5OWskN7AZ5oTt9rUaooKItLX6JKyxw==","shasum":"c84fba3d2c23dd9f050d4abb623f9a40b5c463bf","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.29-test.1595783480057.tgz","fileCount":6,"unpackedSize":440456,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"next"},"gitHead":"3e51d09594e5beccd6a9d7197ca8f6f4d39d84ee","readme":"\n
\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.30-test.1595784120558","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-aIH20BB38Xf7q5mlN9OOCYNF4lX1dNEPL83MDb0HUeWENMEcuuJ4cIKlngHIVCIgWtgjWtF2FnQXfdDAMKJUDQ==","shasum":"9887ab537795811d9ba8985a1bb035ed62f56b0e","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.30-test.1595784120558.tgz","fileCount":6,"unpackedSize":440456,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nExPL\r\n=CggP\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEQCIHJxp3G/l3IUo0cQEoAh4fBim+uA0QRQwwX92yZV1wTrAiAD2OA9DnYq/6EjPc3iCLCqWXkPhsDmnuxJ6cAOLfgDtw=="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_6.13.30-test.1595784120558_1595784133798_0.04155207534326677"},"_hasShrinkwrap":false},"6.13.31-test.1595785129829":{"name":"ts-toolbelt","version":"6.13.31-test.1595785129829","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/millsp/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/millsp/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"next"},"gitHead":"a3f284bb512b1dc915b374859ad80c3ed1ec8903","readme":"\n
\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.31-test.1595785129829","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-IsGDNpM/u9/MIoJldyprIJIIAXZpU3Deg88A/JvHHobUyPN/KrpVcud0qHfLrCihP9yE43ArBHFJ88t0WJ3TGw==","shasum":"ffafe3f52c14303fb42916351cf12ebe3d748795","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.31-test.1595785129829.tgz","fileCount":6,"unpackedSize":451377,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nfcgQ\r\n=GO+R\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEYCIQC0xr+irlEt5zCvUCir1a9bgiHl14I9WjMdDil5pvMCvwIhAMCwpF3N714apZsaaW+2t0or543BeANrO4BblIMWVtTe"}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_6.13.31-test.1595785129829_1595785143223_0.1924681887748687"},"_hasShrinkwrap":false},"6.13.32-test.1595785242800":{"name":"ts-toolbelt","version":"6.13.32-test.1595785242800","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/millsp/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/millsp/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"next"},"gitHead":"fb05cbeca0754131082b56b5a59d753b23a88f4b","readme":"\n
\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.32-test.1595785242800","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-4gveLNqU8DD9pCLjXP6h36v1EJWfVLt50J3k+gd4TsOXjl00qvXWEB/t6q0pJ2x6ZmP+ovAHwzgzFOdHzwRTgw==","shasum":"b8c388a317d363d21aa92b4414dd763841f032e0","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.32-test.1595785242800.tgz","fileCount":6,"unpackedSize":451629,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.32-test.1595792808059","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-IcSIdr7J/tSaSTLBpE7o0pKh0Q+xm2XVI+32Siyq1sU/9LW0ewkx8n2P0Rd1ar/avxHbiKKu1052+fW0sDLB2Q==","shasum":"ad49be853b1497eba7319991d2a87817e4ed8ba0","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.32-test.1595792808059.tgz","fileCount":6,"unpackedSize":451629,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nVO19\r\n=7ckp\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIQCVwEPVroVHJKBoAIYAqKockN1JH/o60gkOwuVFvI0JIwIgFMgixsPA8RkDneU5APtoPWdGiv+hOmWwgPqUyg6hDN8="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_6.13.32-test.1595792808059_1595792821038_0.1350335502862472"},"_hasShrinkwrap":false},"6.13.33-test.1595795486392":{"name":"ts-toolbelt","version":"6.13.33-test.1595795486392","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/millsp/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/millsp/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"next"},"gitHead":"e0779409a11fd1cf50d1330a77accadf45a6ad3a","readme":"\n
\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.33-test.1595795486392","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-Qn7SMQM4HvXIVimUgw9quUTzHD8d9lv2zzlXEf3C6b3TSATZddbIXy/OkKnxlsPoXwimt9MfrKMoHdAUI0iF4A==","shasum":"34a6df6b1725f0bb881441f7318cdde00875b49d","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.33-test.1595795486392.tgz","fileCount":6,"unpackedSize":452170,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"next"},"gitHead":"c0d9ceb03a71e4ca9a51f6077662cb754a586aa2","readme":"\n
\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.34-test.1595867675822","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-yofALSUxA+yYV7l+4HbyHpKOq4EcbUWJwAUAoiAS70sDspI3kZXJlEH3IOzjp9TIenpTurD0Z6NncIsK3Un9cQ==","shasum":"b520ee45a3e5b7ae9967e0708f63663016f70be9","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.34-test.1595867675822.tgz","fileCount":6,"unpackedSize":453453,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.35-test.1596042592847","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-sMQib7/7gsl1KTgFofJeDZrC2kNRib5SEIHe2BGRTBdZH1vh1Q+OIJ9NA+slH4HpRxc6p/JPKb0FnIzZW6p2bQ==","shasum":"547f8277829fe933122d6808a952753b8d8aad91","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.35-test.1596042592847.tgz","fileCount":6,"unpackedSize":454941,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.36-test.1596136831844","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-8+at59QIdUiNbO89rOLQlFXMTFhrLZv6UQZS4lrDLgugEmkIuSDqpgQxDMC4HT7cfNL7865FkWMAqUdwlBdNTQ==","shasum":"464e7c26fdba8604308825167188770b55deb3fa","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.36-test.1596136831844.tgz","fileCount":6,"unpackedSize":458090,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.0.0","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"next"},"gitHead":"41859fd7385886da9aab0824cb7281d8dd78c100","readme":"\n
\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.37-test.1596192014295","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-qEnEv/IUl1fToJdbaXq6dCAnTkU0fftw9Nuw3M5RvTyhsxuQ9DaMz2YEvUz4ovAUsMg5DQ5KVCjPSV2TBN7ilw==","shasum":"e2cb620e2e18de0f2888f8a13d5ef2e584b1f97a","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.37-test.1596192014295.tgz","fileCount":6,"unpackedSize":460247,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.38-test.1596397940034","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-us84RgYbcG9l3gMHEF3bGspFdSOMG11nQlsPkbM7Fx3xgdpAVIgMfZ0EJKS1iI9EgXuASmPCiBlrH03emNl4Og==","shasum":"e397bb987d4bd36dd29347acc066ffedbe807d63","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.38-test.1596397940034.tgz","fileCount":6,"unpackedSize":462206,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.13.39-test.1596402732352","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-CqMSorjXUFSRzCfA1uxh/ON2XUXW9MjN2Voo7khkCXAt4ZGQ4la+/9X9eNBSkq4Spj3QzT1mS9sw8t5vuK6Wsw==","shasum":"83006b4d30d75c184e675288da9dc89d1ec39ad4","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.13.39-test.1596402732352.tgz","fileCount":6,"unpackedSize":465584,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.14.0-test.1596636685709","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-qKl+5Q5xtccu2ODD5LwfraMCSa0BpaXRcf1Ah2XWVZu5uPptBEaPsfSaUae7j0q+RZBprSXDaW2M0jVlHFlWNg==","shasum":"f1914073c53bf2af0dfdb7a19c712d0a22e4a7c6","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.14.0-test.1596636685709.tgz","fileCount":6,"unpackedSize":469203,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.15.0-test.1596637547371","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-ZkEZZR4MVETxG3GJ/Tx5C7x4YaxPpLfzSzkN/coxhoJ7AAJX+FOBRmNXYsCXQRogLp/d/HD0aFH7+g5XbAzIOw==","shasum":"7d77ccd08e250f6153c66139654cdbb783548e58","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.15.0-test.1596637547371.tgz","fileCount":6,"unpackedSize":474010,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.15.1-test.1596924948884","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-aSYve43MC00QIIf7+690UUDEa6FSQeggqgMcGyU75rHMGzwUU8D44Ny0OkCVwmhxz035huBgDUEKwG1b0+FsGg==","shasum":"5744c4fe1e6ad02c2b60176a7d22bfbf557d0016","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.15.1-test.1596924948884.tgz","fileCount":6,"unpackedSize":474543,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n \n \n \n \n \n ts-toolbelt
\n Higher Type Safety for TypeScript. A collection of useful types.
\n
\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.15.2-test.1597138366289","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-Q89p4NROUcC6xoHDDlFu1sFCj5vKcPS7ohiZMnCcDAEKBxD35LLPDqs8n8h58U2+WCDwS9vNDFaJnhEED/JK1w==","shasum":"ee301183a693e3c2d2998c86a97927ef24885f23","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.15.2-test.1597138366289.tgz","fileCount":6,"unpackedSize":475011,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n Higher Type Safety for TypeScript. A collection of useful types.
\n
\n
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.15.3-test.1597150297770","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-Rj3xvvJgVIP9npq0D7emqso1UxyYPfM7I2VAf9AHbGU0Ly7NUD50AzBNCB3nCCwIGjHBaU4Ub5LsVszhHLZeug==","shasum":"52aeee34c919f83f12a468275ba59925531c5c71","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.15.3-test.1597150297770.tgz","fileCount":6,"unpackedSize":476672,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n Higher Type Safety for TypeScript. A collection of useful types.
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.15.4-test.1597186060009","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-S5FZmV1jW1FZWHKNGp74Gfk98w1C1xZJunfM+dtO4DMQOhwn4vqyYYnjx/tKv8gq/79YpZT0CZfipi51GUkEQw==","shasum":"3d38cd45e0089fd3524925743ab6388066691250","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.15.4-test.1597186060009.tgz","fileCount":6,"unpackedSize":477480,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n Higher Type Safety for TypeScript. A collection of useful types.
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@6.15.5-test.1597333971616","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-tQJoiX134W5HFugSAngq+eXWrcZjGyruD1QyizMSEsrltRNMdx7WQ8BC4RSJXkYGprB1JbMNmmeDjaXatKI4+w==","shasum":"3855212d6b9f757bdd90aeecc7392104c4e4624b","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.15.5-test.1597333971616.tgz","fileCount":6,"unpackedSize":485115,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n Higher Type Safety for TypeScript. A collection of useful types.
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@7.0.7-test.1598198094424","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-RTeNFnhZlmDYeDSGwE6kgGm84ZaMSCZgTFXAuDR9OQfJDDgKbi/HI6bJ+cn8UEYggPf1+BaJpOZlvSV5vXiplw==","shasum":"f8da6d7e2eb97ff3aea4e02f43592ae99d31d91a","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-7.0.7-test.1598198094424.tgz","fileCount":6,"unpackedSize":490292,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\neZ+j\r\n=EcES\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEYCIQCGGHFjJqx5KCqZhFSa8t/W4L4LWL8N4WPBy/5ys01gWgIhAOfULxNcn58K+OQcgsy0hOw6NqQ7Y/ByyV86ZI191GDa"}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_7.0.7-test.1598198094424_1598198106999_0.8864762583756443"},"_hasShrinkwrap":false},"8.0.1-test.1598221305258":{"name":"ts-toolbelt","version":"8.0.1-test.1598221305258","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/millsp/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/millsp/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.9.1","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"next"},"gitHead":"b1d5a2a345da1821c9fee0566ecc79e016fff586","readme":"\n \n ts-toolbelt
\n Higher Type Safety for TypeScript. A collection of useful types.
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@8.0.1-test.1598221305258","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-1wp0zSHBavw9XEsPhj9QP43ahVRJP8ie8TOuXDEZ4GBhmvhnapuW8vRg/oYzRhzso9LeA7hYZPv48siXnrRx7Q==","shasum":"327e7f29f8b237b05690fe77aa891aa56380f1b6","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-8.0.1-test.1598221305258.tgz","fileCount":6,"unpackedSize":490679,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nY2ld\r\n=PllQ\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIQD3O3OCgheBHt3bh7RiD4JiStYoNPcdLg/sHSGasVvw3AIgOPaiMUXtosAD1jBNn0WPFEBNZfzCPk+blVQWHvZGkeM="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_8.0.1-test.1598221305258_1598221319232_0.38938716823564024"},"_hasShrinkwrap":false},"8.0.2-test.1598221481550":{"name":"ts-toolbelt","version":"8.0.2-test.1598221481550","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/millsp/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/millsp/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.9.1","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"next"},"gitHead":"03aa8c6d1805c174305532c8b9c265f6e6bfe97b","readme":"\n \n ts-toolbelt
\n Higher Type Safety for TypeScript. A collection of useful types.
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@8.0.2-test.1598221481550","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-EnTkQar/D4TCYaQ79RNUWYJEJslmeXy9Gnq1wJasjhyylKcVx2oz+NTgvbZTFORJ2ictNtsdhwXFCZJ25XOzfg==","shasum":"04ead87aca147fcf82395db26c3fd0cb6283ff9c","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-8.0.2-test.1598221481550.tgz","fileCount":6,"unpackedSize":490900,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n Higher Type Safety for TypeScript. A collection of useful types.
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@8.0.3-test.1598221567052","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-kjDKdjWtL1NWKCc+vIti3oVulKPh7ygmh2Jb9DTEFSRaiTww4fThicle3JCgT90YPerQkg6wBtPGwCfnC6PFuQ==","shasum":"4334295f5866500e7a683515a413b9f41f4751f2","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-8.0.3-test.1598221567052.tgz","fileCount":6,"unpackedSize":491130,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n Higher Type Safety for TypeScript. A collection of useful types.
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@8.0.4-test.1598738192590","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-OBcXnD5h3OGDjOFpY0XDCF8+cbEn+LO+GCHH0uj3dwMWaWG9+QCpKQjpN/dsYCg8xhVzjwh0c5ROYU3pOCq/Yw==","shasum":"3fb73f4b889bf1656cfd44430892787a8629b9d5","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-8.0.4-test.1598738192590.tgz","fileCount":6,"unpackedSize":491994,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n Higher Type Safety for TypeScript. A collection of useful types.
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@8.0.4-test.1599909185897","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-crvfQNY+TIvjOoBLQ4MOAyQASj6tKANnHosaT51/vtI2w5mk1Gl8+U+BK2qFUzsQXsHuidhyBBc3L8mqcqqALg==","shasum":"bc62554873d98050286914f9e38f221769c3ea9a","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-8.0.4-test.1599909185897.tgz","fileCount":6,"unpackedSize":488435,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\nFfhp\r\n=VrLU\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEQCIDfI+QlpMjXBAhW0221D/JN6J8yQHk3flCu1q1lWQfOEAiAGVZwDxrVlkLR7frg5dfAk4iqhW5Ql5vonMzIkXR58hQ=="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_8.0.4-test.1599909185897_1599909199026_0.7793000106760102"},"_hasShrinkwrap":false},"8.0.5-test.1599909256966":{"name":"ts-toolbelt","version":"8.0.5-test.1599909256966","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/millsp/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/millsp/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.9.1","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"next"},"gitHead":"3859d1819021800b96ed815abf5c300eb7b8f926","readme":"\n \n ts-toolbelt
\n Higher Type Safety for TypeScript. A collection of useful types.
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## 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\n Higher Type Safety for TypeScript. A collection of useful types.
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@8.0.6-test.1600123160967","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-6MXFQgi95KVe7qeHt6xYPfAEWo80wH1FDAixrr8N5AyAvAdld4P5wSgpU5gDULpV1eexncF0VZTAQJNOQi+2+A==","shasum":"507eda4f415b594ab71c46013f79fc8e0636c357","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-8.0.6-test.1600123160967.tgz","fileCount":6,"unpackedSize":491415,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: 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\n Higher Type Safety for TypeScript. A collection of useful types.
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@8.3.0-test.1600355949508","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-RdlPcNUHU1KKHNPM+kEWNRwCgFzvjYE2hSedNwuZaxClUrMSF43srxDU2G7hOOXC5qW2LBPMeLktCUXr7I75iQ==","shasum":"ef0c0106717325b78e607620067fe8d6f96decbc","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-8.3.0-test.1600355949508.tgz","fileCount":6,"unpackedSize":495243,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n\r\nwsFcBAEBCAAQBQJfY36ACRA9TVsSAnZWagAASkkP/3ojf7yaWTbrYAS+ZUhX\n50a8yZAxtgY8l+HkNUw1hZCn786jh7D+8i1Q5ewlsJrCdXCrT6l+VGQJ0lRl\njv6UPi619DrrMhREwSg8ru/Ef9brv65L+Xv8I7Ra186TAuuth6qbYeV7qUvG\n5e2uRuFu+Amkgj854t+fSwie3xiqV2iW+2kjxD55JNSJhfyJtwiA2dXbbw8a\n5eUog+GDvz8uCbVC6QegUISOtN5D8imQ6E9zRNUL+PZ0sr7LdtjnfyXVCjK/\nm/8YhkJYvcWa3V2C6U7sxskW+jmFW+9TAV66MaVRfnsiHkaB7jzeVdz2h0z3\nKGZ2apVATL/O3GYB6TXVGknVEAGYaGGDh2MkGHKhi0WhtbWSVVWgyuc8gTo7\nvAhy/h4wwcLTS/U7Z1cu8HdUshKPUMM+BYJLgMRKJYmkAVdkSyiGcF7v4ZAK\npWXg/fr1vH9rEkflgYlDKtK2nphKxM+E/Ehz21oGfaXaoUViAOxdSRCrMlyr\nES1QlGtmDGnsPDU2YSSLdvI6VVh/YYOeIKwHwulNuk7rTDoqkX7q/irrGJP0\neJ1Pj7o8AG22Ab+QgLAQYEbD568/ELOPGYFZQTmourgqwToJ/l0RnySaXqqT\npXE4I8k7UUIyGPSM4++cy2hcyw7Xiu6RZi9hJxCPYT80fr5oIBcWc0Vq61p+\ntJ/m\r\n=jmM6\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIQCwEAuBzkXCR5qy0uavvVtUCLWNLsaXUsgforjaydvxygIgfqC4JTkbXFyCYISjta35DzMQMCRF7n4qVxdw4owV3Wc="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_8.3.0-test.1600355949508_1600355967547_0.1370738033569867"},"_hasShrinkwrap":false},"8.3.0":{"name":"ts-toolbelt","version":"8.3.0","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/millsp/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/millsp/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.9.1","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"4.1.0-dev.20200917"},"gitHead":"a2c42779cadd231a16e02e3549182769554b3550","readme":"\n \n ts-toolbelt
\n Higher Type Safety for TypeScript. A collection of useful types.
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@8.3.0","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-0x0vSYkc3ilLloJ42scg354GymfgDJclxnJSUnhMie1aIjcU61yeFUemAQ4bQfqJimNW5Fy1pcckl4lrC/eYvA==","shasum":"36bd4fb9dfc0a8f908542d956b12298f2e2d2ab4","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-8.3.0.tgz","fileCount":6,"unpackedSize":495224,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\n3nI6\r\n=Zb8W\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEQCIA6dJisp9tTyC8mCAoR78hM7LmdD1N+VoIBEEvxdFlUsAiAcTYVS2Uf6Gz6QLqDxmTxa74TaAKxuzc8FDoFecOggYw=="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_8.3.0_1600356057650_0.3258737552261439"},"_hasShrinkwrap":false},"8.4.0-test.1600902138726":{"name":"ts-toolbelt","version":"8.4.0-test.1600902138726","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/millsp/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/millsp/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.9.1","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"4.1.0-dev.20200917"},"gitHead":"31ddbbf080942037659a2f196439cbb2ce43902d","readme":"\n \n ts-toolbelt
\n Higher Type Safety for TypeScript. A collection of useful types.
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@8.4.0-test.1600902138726","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-d2KFLbCxEzZXK7rpvf+LlwpubIekRnH0Q2ezRJv4LmqUa5opJuWw2KigVg7QMmyPkj3zgXCt9ZXbHt5HyC8USw==","shasum":"1e1e74fde5ecd54135c9fc4ca7de0b5af4f6a46c","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-8.4.0-test.1600902138726.tgz","fileCount":6,"unpackedSize":495096,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.13\r\nComment: https://openpgpjs.org\r\n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\nlxjY\r\n=wqZs\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEUCIQDtuMMwKZmu86b/nfApFsBNIFtkIRGLQ2PEAer4KR3r1QIgJoQFeowdvYNXjLQgwphIRrmBsyKr+qH9jrAfIv6VMqQ="}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_8.4.0-test.1600902138726_1600902152717_0.7721437123840706"},"_hasShrinkwrap":false},"8.4.0":{"name":"ts-toolbelt","version":"8.4.0","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/millsp/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/millsp/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.9.1","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"4.1.0-dev.20200917"},"gitHead":"31ddbbf080942037659a2f196439cbb2ce43902d","readme":"\n \n ts-toolbelt
\n Higher Type Safety for TypeScript. A collection of useful types.
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@8.4.0","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-hnGJXIgC49ZuF5g5oDthoge8t4cvT0dYg2pYO5C6yV/HmUUy1koooU2U/5K2N+Uw++hcXQpJAToLRa+GRp28Sg==","shasum":"af6e64b87be3e097fac63600ce9556e78542fa27","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-8.4.0.tgz","fileCount":6,"unpackedSize":495077,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.13\r\nComment: https://openpgpjs.org\r\n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\nB0m1\r\n=M7v6\r\n-----END PGP SIGNATURE-----\r\n","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEYCIQCqs5Vso64oC33Lj+RIWyqftHKk5Gs5R9k9pTnTpimQHQIhAK3KPEEoa7toyUMfm+x6GURXLVzYBX2+aoHSubw5nszO"}]},"maintainers":[{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"}],"_npmUser":{"name":"pirix-gh","email":"pierreantoine.urvoy@gmail.com"},"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/ts-toolbelt_8.4.0_1600902234648_0.13170657320443513"},"_hasShrinkwrap":false},"8.0.7-test.1601987367174":{"name":"ts-toolbelt","version":"8.0.7-test.1601987367174","description":"Get the most out of TypeScript","keywords":["safe","tools","types","typesafe","typescript"],"homepage":"https://github.com/millsp/ts-toolbelt","repository":{"type":"git","url":"git+https://github.com/millsp/ts-toolbelt.git"},"license":"Apache-2.0","author":{"name":"Pierre-Antoine Mills","url":"https://github.com/millsp"},"main":"out/index.js","types":"out/index.d.ts","scripts":{"build:clean":"bash scr/build/clean.sh","build:code":"bash scr/build/code.sh","build:docs":"bash scr/build/docs.sh","build:types":"bash scr/build/types.sh","ci:branch:ad":"bash scr/ci/branch/ad.sh","ci:branch:bd":"bash scr/ci/branch/bd.sh","ci:docs:ad":"bash scr/ci/docs/ad.sh","ci:docs:bd":"bash scr/ci/docs/bd.sh","ci:master:ad":"bash scr/ci/master/ad.sh","ci:master:bd":"bash scr/ci/master/bd.sh","ci:test:ad":"bash scr/ci/test/ad.sh","ci:test:bd":"bash scr/ci/test/bd.sh","release":"bash scr/release.sh","test":"bash scr/test/all.sh","test:code":"bash scr/test/code.sh","test:lint":"bash scr/test/lint.sh","test:types":"bash scr/test/types.sh"},"dependencies":{},"devDependencies":{"@commitlint/cli":"^8.3.0","@commitlint/config-conventional":"^8.3.0","@typescript-eslint/parser":"^3.9.1","eledoc":"^0.2.0","eslint":"^7.0.0","eslint-plugin-fp":"^2.3.0","eslint-plugin-react":"^7.20.0","husky":"^4.2.5","npx":"^10.2.0","sort-package-json":"^1.42.0","standard-version":"^8.0.0","ts-node":"^8.10.0","tslib":"^2.0.0","typedoc":"^0.17.0","typescript":"next"},"gitHead":"51c9df18bdf0cdeec016ad5715620023f7434897","readme":"\n \n ts-toolbelt
\n Higher Type Safety for TypeScript. A collection of useful types.
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n\"Avoid bugs by writing high quality types\"
\n\n**ts-toolbelt** ships **utility types** that provide simple ways to **update**, **change**, and **compute** TypeScript types.\nIt offers unique dynamic features, allowing you to write type-safe software more **easily** and in **less time** than you do today.\n\nIts programmatic API brings **new capabilities** to TypeScript with **+200** tested type utilities. This makes it the largest and the most reliable type collection out there.\nIt uses the type system itself for TypeScript to compute complex types. So its API exposes types that trade **CPU & RAM** for higher type safety.\n\n### Goals\n\n* Answer the question to **\"How can I do this in TypeScript?\"**\n* Provide a programmatic **standard API** for the type system\n* Promote type **evolution**/**reusability** within your codebase\n* Software that is more **type-safe**, **flexible**, and **robust**\n* Bring a whole new set of extra **features** to TypeScript\n* Extensively tested type utilities for maximum type safety\n* This package aims to be the home of all **utility types**\n* [Answer questions about types and share knowledge](#-good-to-know-)\n\nYou'll find all the types you can ever need in this single and **well organized** package.\n\n## ๐ฉ Features\n\nHere's some of the most useful utilities:\n\n* [Merge two types together](https://millsp.github.io/ts-toolbelt/modules/_object_merge_.html)\n* [Update the field of a type](https://millsp.github.io/ts-toolbelt/modules/_object_update_.html)\n* [Make some fields optional](https://millsp.github.io/ts-toolbelt/modules/_object_optional_.html)\n* [Change a type at any depth!](https://millsp.github.io/ts-toolbelt/modules/_object_p_update_.html)\n* [Concat two lists together](https://millsp.github.io/ts-toolbelt/modules/_list_concat_.html)\n* [Get the last item of a list](https://millsp.github.io/ts-toolbelt/modules/_list_last_.html)\n\n\n\n\n
\n\n## ๐ฎ What's next\n\n* Automated performance tests\n ```sh\n # performance is checked manually with \n npx tsc --noEmit --extendedDiagnostics\n ```\n\n* Need to write more examples\n\n## ๐ Acknowledgements\n\nMany, many thanks to all the [contributors](https://github.com/millsp/ts-toolbelt/graphs/contributors) and:\n\n* [Andrรฉ Staltz](https://github.com/staltz)\n* [Joe Calzaretta](https://github.com/jcalz)\n* [Matt McCutchen](https://github.com/mattmccutchen)\n* [Monroe Ekilah](https://github.com/ekilah)\n* [Nathan S.-Sanders](https://github.com/sandersn)\n* [Regev Brody](https://github.com/regevbr)\n* [Titian C.-Dragomir](https://github.com/dragomirtitian)\n\n## ๐ Friendly Projects\n\n* [`eledoc`](https://github.com/millsp/eledoc) - ๐ A material dark theme for TypeDoc \n* [`utility-types`](https://github.com/piotrwitek/utility-types) - Collection of utility types, complementing TypeScript built-in mapped types and aliases\n\n## License\n\n[](https://app.fossa.com/projects/git%2Bgithub.com%2Fpirix-gh%2Fts-toolbelt?ref=badge_large)","readmeFilename":"README.md","bugs":{"url":"https://github.com/millsp/ts-toolbelt/issues"},"_id":"ts-toolbelt@8.0.7-test.1601987367174","_nodeVersion":"12.0.0","_npmVersion":"6.9.0","dist":{"integrity":"sha512-o/m3YhI3rNscxnlwfcrUwjwkrgRT/kpfBHXF01IKgyJXGi0WAZ52Jy/BW2kYjUEB1kFcmHsn64PLczAtck0N5w==","shasum":"7b240358ed05db3a755a6e075e0650e3fdfb2c18","tarball":"https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-8.0.7-test.1601987367174.tgz","fileCount":6,"unpackedSize":493439,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.13\r\nComment: 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\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n![\"demo\"](\"https://raw.githubusercontent.com/millsp/ts-toolbelt/master/.github/demo.svg\" "\\"ts-toolbelt\\"")
\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n TypeScript's largest utility library
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