const
- OTHERDeclares a constant with block level scope
Chrome
- 4 - 20: Partial support
- 21 - 40: Partial support
- 41 - 48: Partial support
- 49 - 116: Supported
- 117: Supported
- 118 - 120: Supported
Edge
- 12 - 116: Supported
- 117: Supported
Safari
- 3.1 - 5: Partial support
- 5.1 - 9.1: Partial support
- 10 - 10.1: Partial support
- 11 - 16.5: Supported
- 16.6: Supported
- 17.0 - TP: Supported
Firefox
- 2 - 12: Partial support
- 13 - 35: Partial support
- 36 - 116: Supported
- 117: Supported
- 118 - 120: Supported
Opera
- 9 - 9.6: Not supported
- 10 - 11.5: Partial support
- 11.6 - 12.1: Partial support
- 15 - 27: Partial support
- 28 - 35: Partial support
- 36 - 101: Supported
- 102: Supported
IE
- 5.5 - 10: Not supported
- 11: Partial support
Chrome for Android
- 117: Supported
Safari on iOS
- 3.2 - 4.3: Partial support
- 5 - 9.3: Partial support
- 10 - 10.3: Partial support
- 11 - 16.6: Supported
- 17.0: Supported
- 17.1: Supported
Samsung Internet
- 4: Partial support
- 5 - 21: Supported
- 22: Supported
Opera Mini
- all: Partial support
Opera Mobile
- 10 - 11.5: Partial support
- 12 - 12.1: Partial support
- 73: Supported
UC Browser for Android
- 15.5: Supported
Android Browser
- 2.1 - 2.2: Support unknown
- 2.3: Partial support
- 3 - 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: Supported
- 3: Supported