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Separate ES6 library feature-by-feature into smaller files Break ES6 library Remove unused ES6 Rename core to es5 Update building library files in JakeFile separate symbol into its own file separate well-known symbol into its own file remove iterable and symbol component from es6.string.d.ts remove iterable and symbol components from es6.collection.d.ts remove symbol components from es6.math.d.ts remove iterable and symbol components from es6.object.d.ts remove iterable and symbol components from es6.promise.d.ts remove iterable and symbol component from es6.reflect.d.ts remove iterable and symbol components from es6.proxy.d.ts split regexp into its own file remove unused file rename es7 array-include d.ts file Include new lib files into compilation Move symbol.iterable to symbol.wellknown Move functions/methods that use propertyKey back to its original interface Rename dome.es6 to dom.iterable Take dependency on dom.generated.d.ts Rename importcore.d.ts to importes5.d.ts Add es6.d.ts and es7.d.ts that contain /// references to their associated sub-features files Update library compilation Fix harness broken from renaming generated library files Remove intl.d.ts Remove preset lib files Use lib.full.es6.d.ts instead of lib.es6.d.ts Add intl.d.ts to es5.d.ts Remove unused RegexpConstructor interface Separate generator into its own file Update Jakefile Remove iterable-iterator dependence Use lower case for lib filename Include no-default comment Remove newline on top of the file
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).
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 lint # Runs tslint on the TypeScript source.
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.