title: difference between $(function (){}) and (function ($){})
body: <p>I am very confused about whats the actual meaning of </p>
  
  <pre><code>(function ($){})(jQuery) 
  //in plugin
  </code></pre>
  
  <p>and  </p>
  
  <pre><code>$(function (){})
  //in page.
  </code></pre>
  
  <p>Please clearify me on this.</p>