TypeScript: Microsoft’s replacement for JavaScript
"Everyone seems to have a replacement for JavaScript - Google even has two. Now Microsoft has revealed that Anders Hejlsberg has been working on a replacement and it has released a preview of TypeScript. TypeScript is open source - Apache 2.0 license - and a superset of JavaScript. As you would expect from a Hejlsberg language it incorporates type checking, interfaces and lots of syntactic sugar."
