Web platform features explorer

Async functions

The async and await keywords allow you to use the asynchronous, promise-based behavior of a function without using promise chains.

Status

Baseline Widely Available (since 2019-10-05)

MDN documentation

Browser support (view on caniuse.com)

  • Chrome 55 Released on 2016-12-01
  • Chrome Android 55 Released on 2016-12-06
  • Edge 15 Released on 2017-04-05
  • Firefox 52 Released on 2017-03-07
  • Firefox for Android 52 Released on 2017-03-07
  • Safari 10.1 Released on 2017-03-27
  • Safari on iOS 10.3 Released on 2017-03-27