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    <p><strong>Update:</strong> <code>kitty</code> is an <em>instance</em> of <code>Animal</code>. So it'll never say kitty. All those <code>proxy</code> wrappers are careful misdirections.</p> <p>Lets see:</p> <pre><code>(function($, exports){ var animal = function(){}; exports.Animal = animal; })(jQuery, window); </code></pre> <p>Just a disguise to say: <code>window.Animal = function(){};</code></p> <p>You're creating an anonymous function passing jQuery and window object to it and executing it immediately. This creates <code>Animal</code> class in <code>window</code> scope</p> <hr> <p>Now jquery.proxy allows you to change the context of a function: <code>jQuery.proxy( functionName, context )</code> - so inside <code>functionName</code>, <code>this</code> refers to <code>context</code> (<code>this == context</code>).</p> <p><code>$.proxy(kitty.sayHi, kitty)</code> says call <code>sayHi</code> passing <code>kitty</code> as context.</p> <p>Now <code>kitty = new Animal</code> (this is called a closure actaully since you're accessing parent function's variable), so <code>this</code> -> <code>Animal</code> </p> <pre><code>(function($, Animal){ // create a new instance of Animal, assign it to local variable kitty var kitty = new Animal; // assign sayHi to kitty object kitty.sayHi = function(){ console.log(this); console.log('says meow'); } // $() shortcut that says run this code on DOM ready $($.proxy(function(){ // this proxy almost does nothing as we do not refer to this object insdie it // says on click of js_Test, call kitty.sayHi with context = kitty $('#js_test').click($.proxy(kitty.sayHi, kitty)); }, kitty)) })(jQuery, Animal); </code></pre> <p>So when the click handler is called, its actually <code>Animal.sayHi</code>.</p>
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    1. POPlease help me understand Javascript anonymous functions and jQuery .proxy()
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    1. COActually if I take out that first proxy, which you said does almost nothing, the code doesn't work anymore. Any idea why that would be?
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    2. COIt does: http://jsfiddle.net/mrchief/y766D/3/
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    3. CO+1 for *"this proxy almost does nothing..."*. It would be a little more interesting if the inner `$.proxy` took advantage of the outer one by doing `$.proxy(this.sayHi, this)`.
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