I would disagree about that. TypeScript 1.6 has experimental support for async/a...

yareally on Oct 20, 2015 | parent | context | favorite | on: Goodbye CoffeeScript, Hello TypeScript

I would disagree about that. TypeScript 1.6 has experimental support for async/await with ECMA6 + promises. TypeScript 2.0 will bring support for it with ECMA 3 and ECMA 5.

https://github.com/Microsoft/TypeScript/wiki/Roadmap

https://github.com/Microsoft/TypeScript/issues/1664