angular/angular.js — pull request #5295 by kseamon (2013-12-05 16:06:03+00:00)
Title: chore(Angular.js): Use call and === instead of apply and ==

chore(Angular.js): Use call and === instead of apply and == in type check functions

Updates isDate et al to use call instead of apply and === instead of ==.
The change to call brings minor performance improvement and === is just better practice than ==.
http://jsperf.com/call-vs-apply-tostring