title: Can you use a jQuery handler as .on()'s selector?
body: <p>Is it possible to use a jQuery handler <code>$(...)</code> as the selector for <code>.on()</code>? The code snippet below demonstrates my point: how do I make the circle turn blue if I don't have a plaintext representation of my selector, but <em>do</em> have a handler?</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>// This works.
  $(document).on('click', '#wow', function()
  {
      $(this).css('background-color', '#FF0000');
  });
  
  // This doesn't work, but I need it to!
  var context = $('#wow');
  $(document).on('click', context, function()
  {
      $(this).css('background-color', '#0000FF');
  });</code></pre>
  <pre class="snippet-code-css lang-css prettyprint-override"><code>#wow
  {
    background-color: #CCC;
    border-radius: 100px;
    height: 100px;
    width: 100px;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"&gt;&lt;/script&gt;
  &lt;div id="wow"&gt;&lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>