Microsoft announces Typescript, a superset of Javascript
October 1, 2012
Microsoft has announced the release of Typescript, a superset of Javascript, which they say will better allow developers to build large applications and will provide better support for large teams, especially when building server- and cloud-side applications. It was released under an Apache 2.0 open-source license.
TypeScript Website: http://www.typescriptlang.org/
ZDNet article: http://www.zdnet.com/microsoft-takes-the-wraps-off-typescript-a-superset-of-javascript-7000004993/?s_cid=e550