For the latest stable version:
npm install -g typescript
For our nightly builds:
npm install -g typescript@next
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).
Clone a copy of the repo:
git clone https://github.com/Microsoft/TypeScript.git
Change to the TypeScript directory:
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.