04-23-2009, 05:39 PM
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#3 (permalink)
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Moderateur
Join Date: Apr 2007
Posts: 1,393
Thanks: 5
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Quote:
Originally Posted by allworknoplay
Now I keep staring at that code, and I don't see what he's talking about? The function has only one variable in it's scope, and that's the Y variable in which he returns it.
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Sure, there's only one variable used (aside: not declared) inside the function but the variable x is still available to be used. For example:
JavaScript Code:
var x = 5;
var n = function(){
var y = 10;
return x + y;
};
// … some time later
x = 113;
alert(n()); // 123
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