判定是否支持ecma262v5的严格模式
by 司徒正美
at 2012-03-20 16:14:00
original http://www.cnblogs.com/rubylouvre/archive/2012/03/20/2408109.html
var supportStrict = (function() { 'use strict'; return (function(){ return !this })(); })();
var supportStrict = (function() { 'use strict'; return (function(){ return !this })(); })();