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
. * 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, md).
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.