ECMAScript 2015 (ES6)
- OTHERSupport for the ECMAScript 2015 specification. Features include Promises, Modules, Classes, Template Literals, Arrow Functions, Let and Const, Default Parameters, Generators, Destructuring Assignment, Rest & Spread, Map/Set & WeakMap/WeakSet and many more.
Chrome
- ❌ 4 - 20: Not supported
- ◐ 21 - 50: Partial support
- ✅ 51 - 154: Supported
- ✅ 155: Supported
- ✅ 156 - 158: Supported
Edge
- ◐ 12 - 14: Partial support
- ✅ 15 - 18: Supported
- ✅ 79 - 154: Supported
- ✅ 155: Supported
Safari
- ❌ 3.1 - 7: Not supported
- ◐ 7.1 - 9.1: Partial support
- ✅ 10 - 26.6: Supported
- ✅ 27: Supported
- ✅ 27.1 - TP: Supported
Firefox
- ❌ 2 - 5: Not supported
- ◐ 6 - 53: Partial support
- ✅ 54 - 157: Supported
- ✅ 158: Supported
- ✅ 159 - 161: Supported
Opera
- ❌ 9 - 12.1: Not supported
- ◐ 15 - 37: Partial support
- ✅ 38 - 134: Supported
- ✅ 135: Supported
IE
- ❌ 5.5 - 10: Not supported
- ◐ 11: Partial support
Chrome for Android
- ✅ 155: Supported
Safari on iOS
- ❌ 3.2 - 6.1: Not supported
- ◐ 7 - 9.3: Partial support
- ✅ 10 - 26.6: Supported
- ✅ 27.0: Supported
- ✅ 27.1 - 27.2: Supported
Samsung Internet
- ◐ 4: Partial support
- ✅ 5 - 29: Supported
- ✅ 30: Supported
Opera Mini
- ❌ all: Not supported
Opera Mobile
- ❌ 10 - 12.1: Not supported
- ✅ 80: Supported
UC Browser for Android
- ✅ 15.5: Supported
Android Browser
- ❌ 2.1 - 4.3: Not supported
- ◐ 4.4 - 4.4.4: Partial support
- ✅ 155: Supported
Firefox for Android
- ✅ 158: Supported
QQ Browser
- ✅ 14.9: Supported
Baidu Browser
- ✅ 13.52: Supported
KaiOS Browser
- ◐ 2.5: Partial support
- ✅ 3: Supported
As ES6 refers to a huge specification and browsers have various levels of support, "Supported" means at least 95% of the spec is supported. "Partial support" refers to at least 10% of the spec being supported. For full details see the Kangax ES6 support table.