DefinitelyTyped

Boris Yankov has started collecting TypeScript type defintions for popular JavaScript libraries. These files (ending in .d.ts) describe the public api of an existing library, just like .h files do for C code. This allows you to write TypeScript code against JavaScript libraries without them having to change anything.

Currently available:

You can find all the definition files on his GitHub project: https://github.com/borisyankov/DefinitelyTyped

Written and tagged in JavaScript TypeScript Edit