Use window instead of this in closures to improve obfuscation. #2413
Description
I don't understand why the global object is still referenced by using the keyword this inside the closures since it won't be obfuscated/minimized. As an example, the following...
(function(){
this.MooTools = { /*! ... */ };
var typeOf = this.typeOf = function(item){ /*! ... */ };
})();... will be minimized as ...
(function(){this.MooTools={/*! ... */};var a=this.typeOf=function(b){/*! ... */};})();... while the now following ...
!function(window){
window.MooTools = { /*! ... */ };
var typeOf = window.typeOf = function(item){ /*! ... */ };
}(this);... will be minimized this way:
!function(a){a.MooTools={/*! ... */};var b=a.typeOf=function(c){/*! ... */};}(this);(Note: Negating the self invoking function [unless there is no returning value needed] saves the parentheses.)
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