title: Do I need to use "e = e ? e : window.event;" with jQuery?
body: <p>I saw in some no jQuery code this part of code inside event:</p>
  
  <pre><code>e = e ? e : window.event;
  </code></pre>
  
  <p>I use jQuery and I am wondering if I am safe to remove this part of code:</p>
  
  <pre><code>jQuery(document).mouseout(function(e){
    console.log(e)
  }
  </code></pre>