How to find event listeners on a DOM node when debugging or from the JavaScript code?

Navneet picture Navneet · Jan 15, 2009 · Viewed 579.4k times · Source

I have a page where some event listeners are attached to input boxes and select boxes. Is there a way to find out which event listeners are observing a particular DOM node and for what event?

Events are attached using:

  1. Prototype's Event.observe;
  2. DOM's addEventListener;
  3. As element attribute element.onclick.

Answer

Andrew Hedges picture Andrew Hedges · Aug 6, 2010

If you just need to inspect what's happening on a page, you might try the Visual Event bookmarklet.

Update: Visual Event 2 available.