Angular2在Typescript，Javascript和Dart中可用。无需使用Typescript。
见
-
https://angular.io/docs/js/latest/index.html
- http://blog.thoughtram.io/angular/2015/05/09/writing-angular-2-pre-in-
es5。 html
- http://blog.thoughtram.io/angular/2015/07/06/even-better-es5-pre-for-
angular-2.html
<script src="https://pre.angularjs.org/2.0.0-beta.3/Rx.umd.js"></script><script src="https://pre.angularjs.org/2.0.0-beta.3/angular2-polyfills.js"></script><script src="https://pre.angularjs.org/2.0.0-beta.3/angular2-all.umd.dev.js"></script>
