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

javascript language typechecker typescript

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Mohamed Hegazy 7b7febde0b Update LKG		2015-01-13 09:23:38 -08:00
bin	Update LKG	2015-01-13 09:23:38 -08:00
doc	Minor updates to Type Aliases section	2014-11-01 15:45:58 -07:00
scripts	Fixed old sys dependency, as sys is now ts.sys.	2014-12-11 16:03:49 -08:00
src	Merge pull request #1594 from Microsoft/allowNonTsExtensionsVsNoExtensions	2015-01-13 09:18:00 -08:00
tests	consider type parameters always visible	2015-01-10 22:06:38 -08:00
.gitignore	Merge branch 'master' into es6typings	2014-11-27 09:59:46 -08:00
.npmignore	Update .npmignore	2014-07-16 15:57:55 -07:00
.travis.yml	Use the new beta build env on Travis	2014-11-07 15:00:52 +13:00
CONTRIBUTING.md	Update CONTRIBUTING.md	2014-10-24 10:36:02 -07:00
CopyrightNotice.txt	Add snapshot of compiler sources	2014-07-12 17:30:19 -07:00
Jakefile	Add internal definitions to a diffrent .d.ts files	2014-12-15 21:09:57 -08:00
LICENSE.txt	Add snapshot of compiler sources	2014-07-12 17:30:19 -07:00
README.md	Fixing badge URL	2014-10-09 17:35:45 -07:00
ThirdPartyNoticeText.txt	Remove unused third party tools	2014-09-18 11:49:40 -07:00
package.json	Allow typescript to be importable in node.	2014-12-10 14:38:14 -08:00

README.md

TypeScript

TypeScript is a language for application-scale JavaScript. TypeScript adds optional types, classes, and modules to JavaScript. TypeScript supports 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.

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.
Join the #typescript discussion on Twitter.
Contribute bug fixes.
Read the language specification (docx, pdf).

Documentation

Building

In order to build the TypeScript compiler, ensure that you have Git and Node.js installed.

Clone a copy of the repo:

git clone https://github.com/Microsoft/TypeScript.git

Change to the TypeScript directory:

cd TypeScript

Install Jake tools and dev dependencies:

npm install -g jake
npm install

Use one of the following to build and test:

jake local            # Build the compiler into built/local 
jake clean            # Delete the built compiler 
jake LKG              # Replace the last known good with the built one.
                      # Bootstrapping step to be executed when the built compiler reaches a stable state.
jake tests            # Build the test infrastructure using the built compiler. 
jake runtests         # Run tests using the built compiler and test infrastructure. 
                      # You can override the host or specify a test for this command. 
                      # Use host=<hostName> or tests=<testPath>. 
jake runtests-browser # Runs the tests using the built run.js file. Syntax is jake runtests. Optional
                        parameters 'host=', 'tests=[regex], reporter=[list|spec|json|<more>]'.
jake baseline-accept  # This replaces the baseline test results with the results obtained from jake runtests. 
jake -T               # List the above commands.

Usage

node built/local/tsc.js hello.ts

Roadmap

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