Installing

npm install -g typescript

npm install -g typescript@next

Contribute

Documentation

Building

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

cd TypeScript

npm install -g gulpnpm ci

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 specific suite runner used or specify a test for this command.                       # Use --tests=<testPath> for a specific test and/or --runner=<runnerName> for a specific suite.                       # Valid runners include conformance, compiler, fourslash, project, user, and docker                       # The user and docker runners are extended test suite runners - the user runner                       # works on disk in the tests/cases/user directory, while the docker runner works in containers.                       # You'll need to have the docker executable in your system path for the docker runner to work.gulp runtests-parallel # Like runtests, but split across multiple threads. Uses a number of threads equal to the system                       # core count by default. Use --workers=<number> to adjust this.gulp baseline-accept   # This replaces the baseline test results with the results obtained from gulp runtests.gulp lint              # Runs eslint on the TypeScript source.gulp help              # List the above commands.

Usage

node built/local/tsc.js hello.ts

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