Inspect jQuery Element Events

By  on  

Building on top of other tools can be incredibly difficult, especially when you didn't create the other tool and you can't replace that tool.  And when those other tools create loads of event listeners, you sometimes see odd behavior within the page and have no idea what the hell is going on.  Unfortunately a large part of client side coding and library usage comes down to fighting your own tools.

Luckily jQuery allows you inspect events that have been registered to a given element!  Here's the magic:

// First argument is the element you want to inspect
jQuery._data(document.body, "events");

jQuery Events

What's returned is an object whose keys represent the event names and the values are arrays of event handles that have been registered to the element and in the order they were registered.  You can even inspect the function URL location and its contents, then allowing you to see what code is messing with your page.  And then, after you've cursed out the other tool, you can monkey patch the problematic function.

Event listeners can really cause debugging misdirection within JavaScript, especially when you aren't an expert with a given framework.  Take the time to learn to leverage as many helper methods as you can -- they will save you hours of frustration.

Recent Features

Incredible Demos

  • By
    Using Dotter for Form Submissions

    One of the plugins I'm most proud of is Dotter. Dotter allows you to create the typical "Loading..." text without using animated images. I'm often asked what a sample usage of Dotter would be; form submission create the perfect situation. The following...

  • By
    Image Reflection with jQuery and MooTools

    One subtle detail that can make a big difference on any web design is the use of image reflections. Using them too often can become obnoxious but using reflections on large, "masthead" images is a classy enhancement. Unfortunately creating image reflections within your...

Discussion

    Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!