angular/angular.js — pull request #9067 by realityking (2014-09-13 19:47:18+00:00)
Title: refactor(map) Use Array.prototype.map instead of our own function

On most browsers this comes with a nice performance improvement http://jsperf.com/angular-map-vs-native/4 The biggest being IE 11 where it is 8x faster. In Chrome 37 there's a small regression. Firefox 31 shows a bigger regression, however these results couldn't be repeated with Firefox 32.