Anders Hejlsberg 7cf842b42b Enum unification and improvements (#50528)
* Fix enum classification and evaluation

* References in literal enums must be to other enum members

* Accept new baselines

* Unify enum types + template literal constant expressions

* Accept new baselines

* Fix fourslash tests

* Fix new compiler errors

* Fix lint error

* Accept new API baselines

* Fix test

* Better error message + consistently check enum initializers

* Accept new baselines
2022-11-03 11:05:42 -07:00

TypeScript

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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.

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.

Description
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
Readme 5 GiB
2025-07-30 13:28:01 -05:00
Languages
TypeScript 97.9%
jsonc 1.9%
JavaScript 0.2%