title: Handling jQuery.noConflict
body: <p>I have inherited scripts that begin like this:</p>
  
  <pre><code>var $j = jQuery.noConflict();
  </code></pre>
  
  <p>But I have no idea why this is done. I understand that we're trying to resolve conflicts but how can I find which conflict it is trying to resolve? </p>
  
  <p>If we can't find the actual conflict, we're planning to revert to <strong><code>$</code></strong> instead of <strong><code>$j</code></strong> and look if any conflict appears. </p>