Created
May 3, 2012 16:24
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Defers execution of the callback until exec is run. At that point, all future calls are executed immediately.
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function Defer(callback){ | |
if(!this instanceof Defer) | |
return new Defer(callback); | |
var queue = [] | |
, callback = callback | |
, slice = Array.prototype.slice | |
, changeling = function(){ | |
queue.push({ | |
'context': this, | |
'args' : slice.call(arguments, 0) | |
}); | |
} | |
, wrapper = function(){ | |
changeling.apply(this, slice.call(arguments, 0)); | |
} | |
;//var | |
wrapper.exec = function(){ | |
var call; | |
while(call = queue.pop()){ | |
callback.apply(call.context, call.args); | |
} | |
changeling = callback; | |
} | |
return wrapper; | |
} |
var func = (function() {
var privateData = 0;
var _func = function(x) { privateData ++; return x; };
_func.hello = function(who) { return "you called " + privateData + " times"; }
return _func;
})();
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var func = function(x) { return x };
func.hello = function(who) { return "hey baby, " + who; }
func(10) // => 10
func.hello("chad") // => "hey baby, chad"