Async/await in web browser or in node.js?

Question

Is there any attempt to bring async/await feature from C# 5.0 to any language which can be compiled to JavaScript (such as CoffeScript)? (So it can be used

Answer 1

async/await looks to be coming in ECMAScript 7. This proposal was accepted into stage 1 of the specification process in January 2014.

The good news is that Googles traceur compiler already supports it, so you could start using it today.

Sample syntax:

async function asyncValue(value) {
  await timeout(50);
  return value;
}

async/await is also on the TypeScript roadmap.