Collaboration Puts TypeScript Right in the Middle of AngularJS

Microsoft and Google to collaborate on building the second coming of the open source Web application framework, and TypeScript will be the tool of choice.

The next version of AngularJS, the open source Web application framework, will be built using Microsoft TypeScript. That's the gist of an announcement from the ng-conf being held in Salt Lake City, Utah, this week. The collaboration has been months in the making, according to Microsoft Program Manager Jonathan Turner, in a blog post.

AngularJS, which powers popular sites like and Vevo, is currently in the midst of a major rewrite. A major part of the rewrite is the development of a new programming language, called AtScript, a JavaScript superset.

What's new, from the Microsoft side of the collaboration, is that "we have converged the TypeScript and AtScript languages," said Microsoft Corporate Vice President S. Somasegar in a separate blog post this morning. Going forward, he said that the TypeScript and Angular teams will be working to develop the next version of TypeScript, version 1.5, and TypeScript will absorb any of the essential working parts of AtScript. One essential working part in particular is AtScript's approach to annotations, which Somasegar describes as "a way to add metadata to class declarations for use by dependency injection or compilation directives."

Both teams will work to incorporate annotations into TypeScript 1.5, as well as develop support for destructuring, spread operators, EcmaScript 6 modules and a host of other features. You can find a roadmap of upcoming 1.5 features, as well as features leading up to version 2.0, on the TypeScript GitHub page.

To view live streams and on-demand video of the ng-conf, including a keynote of Google Engineering Director Brad Green and Google Software Engineer Igor Minar announcing news of the Microsoft-Google collaboration, go here.

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