title: How to get selector on which 'click' event has been bound?
body: <p>I'm using jQuery <code>on</code> function to bind click event:</p>
  
  <pre><code>$('#page-container, .some-class').on('click', '.do-something', function(event) {
      // #page-container or .some-class?
  });
  </code></pre>
  
  <p>Now inside callback function I want to know if 'click' event has been fired from <code>#page-container</code> or <code>.some-class</code>. With <code>$(this)</code> I get only selector which has been clicked.</p>