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# TypeScript [](https://github.com/microsoft/TypeScript/actions/workflows/ci.yml) [](https://www.npmjs.com/package/typescript) [](https://www.npmjs.com/package/typescript) [](https://securityscorecards.dev/viewer/?uri=github.com/microsoft/TypeScript) [TypeScript](https://www.typescriptlang.org/) is a language for application-scale JavaScript. TypeScript adds optional types to JavaScript that support tools for large-scale JavaScript applications for any browser, for any host, on any OS. TypeScript compiles to readable, standards-based JavaScript. Try it out at the [playground](https://www.typescriptlang.org/play/), and stay up to date via [our blog](https://blogs.msdn.microsoft.com/typescript) and [Twitter account](https://twitter.com/typescript). Find others who are using TypeScript at [our community page](https://www.typescriptlang.org/community/). ## Installing For the latest stable version: ```bash npm install -D typescript ``` For our nightly builds: ```bash npm install -D typescript@next ``` ## Contribute There are many ways to [contribute](https://github.com/microsoft/TypeScript/blob/main/CONTRIBUTING.md) to TypeScript. * [Submit bugs](https://github.com/microsoft/TypeScript/issues) and help us verify fixes as they are checked in. * Review the [source code changes](https://github.com/microsoft/TypeScript/pulls). * Engage with other TypeScript users and developers on [StackOverflow](https://stackoverflow.com/questions/tagged/typescript). * Help each other in the [TypeScript Community Discord](https://discord.gg/typescript). * Join the [#typescript](https://twitter.com/search?q=%23TypeScript) discussion on Twitter. * [Contribute bug fixes](https://github.com/microsoft/TypeScript/blob/main/CONTRIBUTING.md). This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/). For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional questions or comments. ## Documentation * [TypeScript in 5 minutes](https://www.typescriptlang.org/docs/handbook/typescript-in-5-minutes.html) * [Programming handbook](https://www.typescriptlang.org/docs/handbook/intro.html) * [Homepage](https://www.typescriptlang.org/) ## Roadmap For details on our planned features and future direction, please refer to our [roadmap](https://github.com/microsoft/TypeScript/wiki/Roadmap).