5353475fce
* Always generate type & symbol baselines * Accept changed shadowed baselines * Accept brand new type and symbol baselines * Allow `getTypeAtLocation` to return undefined in the type writer * Accept baselines which had missing type information * Bind container for dynamically names enum members so they may be printed * Accept type/symbol baselines for enums with computed members * First pass at reducing typeWriter memory overhead * Use generators to allow for type and symbol baselines with no cache * Accept new baselines for tests whose output was fixed by better newline splitting * Hard cap on number of declarations printed, cache declaration print text * handle differing newlines better still to handle RWC newlines * Lower abridging count, accept abridged baselines * Limit max RWC error output size, limit RWC type and symbol baseline input size * Move skip logic into type and symbol baseliner to streamline error handling * Accept removal of empty baselines * Canonicalize path earlier to handle odd paths in input files * Do canonicalization earlier still, also ensure parallel perf profiles for different targets do not trample one another * No need to pathify again |
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| .vscode | ||
| bin | ||
| doc | ||
| lib | ||
| scripts | ||
| src | ||
| tests | ||
| .editorconfig | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .npmignore | ||
| .travis.yml | ||
| AUTHORS.md | ||
| CONTRIBUTING.md | ||
| CopyrightNotice.txt | ||
| Gulpfile.ts | ||
| Jakefile.js | ||
| LICENSE.txt | ||
| README.md | ||
| ThirdPartyNoticeText.txt | ||
| issue_template.md | ||
| jenkins.sh | ||
| netci.groovy | ||
| package.json | ||
| pull_request_template.md | ||
| tslint.json | ||
README.md
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.