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This only transpiles one package to start with: di/ It ensures that package transpiles without errors, so no one can introduce non-TypeScript syntax. Next step is to widen the task inputs to cover additional packages. See design doc for the migration: https://docs.google.com/document/d/14RJLhu6uuv7NchFkAb6PKzOOO0L7l3Z507eKWzkEUhQ/edit A convenience task 'ts2dart' is added for developing ts2dart, and it runs all of the angular code through the transpiler to collect errors.
Angular 
Angular is a development platform for building mobile and desktop web applications. This is the repository for Angular 2, both the JavaScript (JS) and Dart versions.
Angular 2 is currently in Alpha Preview. We recommend using Angular 1.X for production applications:
Setup & Install Angular 2
Follow the instructions given on the Angular download page.
Want to help?
Want to file a bug, or contribute some code or improve documentation? Excellent! Read up on our guidelines for contributing.
Examples
To see the examples, first build the project as described here.
Hello World Example
This example consists of three basic pieces - a component, a decorator and a
service. They are all constructed via injection. For more information see the
comments in the source modules/examples/src/hello_world/index.js.
You can build this example as either JS or Dart app:
- JS:
$(npm bin)/gulp build.js.dev, and$(npm bin)/gulp serve.js.dev, and- open
localhost:8000/examples/src/hello_world/in Chrome.
- Dart:
$(npm bin)/gulp serve/examples.dart, and- open
localhost:8080/src/hello_worldin Chrome (for dart2js) or Dartium (for Dart VM).