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 - 116: Supported
- 117: Supported
- 118 - 120: Supported
Edge
- 12 - 14: Partial support
- 15 - 18: Supported
- 79 - 116: Supported
- 117: Supported
Safari
- 3.1 - 7: Not supported
- 7.1 - 9.1: Partial support
- 10 - 16.5: Supported
- 16.6: Supported
- 17.0 - TP: Supported
Firefox
- 2 - 5: Not supported
- 6 - 53: Partial support
- 54 - 116: Supported
- 117: Supported
- 118 - 120: Supported
Opera
- 9 - 12.1: Not supported
- 15 - 37: Partial support
- 38 - 101: Supported
- 102: Supported
IE
- 5.5 - 10: Not supported
- 11: Partial support
Chrome for Android
- 117: Supported
Safari on iOS
- 3.2 - 6.1: Not supported
- 7 - 9.3: Partial support
- 10 - 16.6: Supported
- 17.0: Supported
- 17.1: Supported
Samsung Internet
- 4: Partial support
- 5 - 21: Supported
- 22: Supported
Opera Mini
- all: Not supported
Opera Mobile
- 10 - 12.1: Not supported
- 73: Supported
UC Browser for Android
- 15.5: Supported
Android Browser
- 2.1 - 4.3: Not supported
- 4.4 - 4.4.4: Partial support
- 117: Supported
Firefox for Android
- 117: Supported
QQ Browser
- 13.1: Supported
Baidu Browser
- 13.18: 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.