title: ending of (jQuery,this);
body: <p>I saw many js minified files having the structure:</p>
  
  <pre><code>(function($,window) ...... )(jQuery,this);
  </code></pre>
  
  <p>what is with this structure? It's like divided into 2 pairs of parantheses, the very big first one, and the (jQuery,this); in the end.</p>