TypeScript, a typed JavaScript from Microsoft - open source

http://www.typescriptlang.org

It has a compiler to convert TypeScript code into JavaScript.

It is open source software.

The TypeScript news currently has many comments on Hacker News:

http://news.ycombinator.com/item?id=4597716

Surprisingly, they even have info on how to use it with "other editors" like Vim, apart from Visual Studio.

A comment on HN say that Microsoft is now getting more open-source-friendly, due to newer people ("young turks" :) getting into management roles there. Good news if so.

Inspired by nature.
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