Javasciprt Visual Event

http://www.sprymedia.co.uk/article/Visual+Event

 

Introduction

When working with events in Javascript, it is often easy to loose track of what events are subscribed where. This is particularly true if you are using a large number of events, which is typical in a modern interface employing progressive enhancement. Javascript libraries also add another degree of complexity to listeners from a technical point of view, while from a developers point of view they of course can make life much easier! But when things go wrong it can be difficult to trace down why this might be.

It is due to this I've put together a Javascript bookmarklet called Visual Event which visually shows the elements on a page that have events subscribed to them, what those events are and the function that the event would run when triggered. This is primarily intended to assist debugging, but it can also be very interesting and informative to see the subscribed events on other pages.