/TypeScript forked from Microsoft/TypeScript

TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
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TypeScript
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.github Update Bug_report.md ts version to 3.0.0 May 24, 2018
.vscode Migrate tscWatchMode to vfs Nov 22, 2017
bin Moved LKG folder to lib Jul 27, 2015
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src Merge pull request #24465 from RyanCavanaugh/tsbuild Jun 9, 2018
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.editorconfig Use CRLF, not LF. Mar 2, 2015
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.gitignore Add temp module dir to gitignore to reduce git intellisense load when… May 16, 2018
.gitmodules Add prettier user test and fix associated crash (#23715) Apr 26, 2018
.mailmap Update authors May 30, 2018
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.travis.yml Add release-2.9 to covered branches May 10, 2018
AUTHORS.md Update authors May 30, 2018
CONTRIBUTING.md Update CONTRIBUTING.md Jan 8, 2018
CopyrightNotice.txt Baseline public API (#18897) Oct 3, 2017
Gulpfile.js Change getDirSize to default export Jun 8, 2018
Jakefile.js Modernize syntax by using arrow funcs Jun 8, 2018
LICENSE.txt Add snapshot of compiler sources Jul 13, 2014
README.md Add VSTS Build status badge to README (#23789) May 2, 2018
ThirdPartyNoticeText.txt Update header Jun 7, 2018
package-lock.json Add script for automatically creating PRs for user test updates (#24036) May 10, 2018
package.json Update version May 16, 2018
tslint.json Enable '--strictNullChecks' (#22088) May 22, 2018

README.md

Build Status VSTS Build Status npm version Downloads

TypeScript

Join the chat at https://gitter.im/Microsoft/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.

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

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 Gulp tools and dev dependencies:

npm install -g gulp
npm install

Use one of the following to build and test:

gulp local            # Build the compiler into built/local 
gulp clean            # Delete the built compiler 
gulp LKG              # Replace the last known good with the built one.
                      # Bootstrapping step to be executed when the built compiler reaches a stable state.
gulp tests            # Build the test infrastructure using the built compiler. 
gulp 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>. 
gulp runtests-browser # Runs the tests using the built run.js file. Syntax is gulp runtests. Optional
                        parameters 'host=', 'tests=[regex], reporter=[list|spec|json|<more>]'.
gulp baseline-accept  # This replaces the baseline test results with the results obtained from gulp runtests.
gulp lint             # Runs tslint on the TypeScript source.
gulp help             # 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.