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

You can have async/await in Google Chrome with Experimental JS flag enabled, using built-in Generators, Promises and a tiny spawn() function by Jake Archibald:

spawn(function*() { //this function is async
      let story = yield getJSON('story.json'); //yield is like await
      addHtmlToPage(story.heading);
});

Alternatively, you can use:

• Q with async() and spawn() by Kris Kowal
• Co by Visionmedia
• Awaitable by Jonathan Ong
• Task.js by Mozilla
• Then-yield by Forbes Lindesay
• When by cujoJS

For browsers not supporting ES6, there is Facebook Regenerator.