Web platform features explorer

__proto__

Discouraged
Tags: javascript

The __proto__ property of objects partially exposes the prototype of an object.

Browser support

  • Chrome 1 Released on 2008-12-11
  • Chrome Android 18 Released on 2012-06-27
  • Edge 12 Released on 2015-07-29
  • Firefox 1 Released on 2004-11-09
  • Firefox for Android 4 Released on 2011-03-29
  • Safari 3 Released on 2007-10-26
  • Safari on iOS 1 Released on 2007-06-29