title: Regarding with Javascript array shuffle function
body: <p>recently I have read tutorial from some of the web page about Javascript function that shuffles array. but some portion of the code I didn't understood completely.
  for ex:here is <a href="http://jsfiddle.net/2m5q3d2j/6/" rel="nofollow">js fiddle</a></p>
  
  <p>here i dont understand this code part</p>
  
  <pre><code>this[i] = this[j] + (this[j] = this[i],0);
  </code></pre>
  
  <p>what does it means <code>(this[j] = this[i],0);</code>
  ?
  Thanks in advance</p>