Current stable browser versions:
FF 35: 60% Chrome 40: 35% Safari 8/Mobile: 22% IE11: 21%
Oops, yeah. I wrote "IE11" but I meant "IE TP".
The dev versions of IE/Firefox/Chrome/WebKit are up to 70%/69%/48%/28% respectively.
FF 35: 60% Chrome 40: 35% Safari 8/Mobile: 22% IE11: 21%
The dev versions of IE/Firefox/Chrome/WebKit are up to 70%/69%/48%/28% respectively.
http://kangax.github.io/compat-table/es6/
The main laggard for now is Safari/WebKit.