TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

javascript language typechecker typescript

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Titian Cernicova-Dragomir ed568e20f1 Temporary commit to show an external implementation of declaration emit.		2023-03-16 15:12:55 +00:00
.devcontainer	Change build system to hereby	2022-11-07 13:35:48 -08:00
.github	Fix smoke test failure due to bad git restore post-LKG-deletion (#53156 )	2023-03-07 17:15:10 -08:00
.vscode	Fix build watch task in tasks.json post-LKG removal (#53190 )	2023-03-09 16:35:17 -08:00
bin	Moved LKG folder to lib	2015-07-27 10:07:07 -07:00
external-declarations	Temporary commit to show an external implementation of declaration emit.	2023-03-16 15:12:55 +00:00
scripts	Remove lib folder (LKG) and use node_modules for building (#52226 )	2023-03-07 15:34:47 -08:00
src	Fix tests.	2023-03-13 14:05:18 +00:00
tests	Fix duplicate file name in tests.	2023-03-16 12:59:54 +00:00
.editorconfig	Use CRLF, not LF.	2015-03-02 14:38:24 -08:00
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.git-blame-ignore-revs	Generated module conversion step - .git-ignore-blame-revs	2022-11-07 13:33:07 -08:00
.gitattributes	Make GitHub render json as jsonc (#52335 )	2023-01-20 12:08:26 -08:00
.gitignore	Remove lib folder (LKG) and use node_modules for building (#52226 )	2023-03-07 15:34:47 -08:00
.gulp.js	Change build system to hereby	2022-11-07 13:35:48 -08:00
CODE_OF_CONDUCT.md	Added Microsoft code of conduct file	2018-10-05 22:10:20 +01:00
CONTRIBUTING.md	Remove docker and user tests, related infra (#53118 )	2023-03-06 19:59:21 -08:00
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LICENSE.txt	Add snapshot of compiler sources	2014-07-12 17:30:19 -07:00
README.md	Add the OpenSSF Scorecard GitHub Action (#52103 )	2023-02-28 16:00:42 -08:00
SECURITY.md	Create SECURITY.md (#45474 )	2021-08-16 13:54:30 -07:00
ThirdPartyNoticeText.txt	Fix ThirdPartyNoticeText.txt encoding (#53184 )	2023-03-09 13:05:02 -08:00
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package.json	Temporary commit to show an external implementation of declaration emit.	2023-03-16 15:12:55 +00:00

README.md

TypeScript

TypeScript 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, and stay up to date via our blog and Twitter account.

Find others who are using TypeScript at our community page.

Installing

For the latest stable version:

npm install -g typescript

For our nightly builds:

npm install -g typescript@next

Contribute

There are many ways to contribute to TypeScript.

Submit bugs and help us verify fixes as they are checked in.
Review the source code changes.
Engage with other TypeScript users and developers on StackOverflow.
Help each other in the TypeScript Community Discord.
Join the #typescript discussion on Twitter.
Contribute bug fixes.

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.

Documentation

Roadmap

For details on our planned features and future direction please refer to our roadmap.