javascripteventsdom-eventszepto

View event listeners - Javascript


I'm wondering if it is possible to view

1. How many event listeners

2. What type of event listener

On a single web page.

Reason being is because I'm using off(); method.

I'm using this framework, which is basically jQuery but not.

Yeah, I'm using off but the even't isn't removing and and I have a feeling there is more than one eventListener on the element.

If it is not possible with Javascript, it is possible in the browser?


Solution

  • Chrome has some built in tools. If you open up the element inspector, focus on an element, scroll to the bottom of the right hand column (where the CSS/Metrics/etc are), you should see a drop down section that says Event Listeners. This can help some...

    Often I find it easier to just add event listeners to some DOM element via the console and seeing if it responds. Or I throw in debuggers in various places (before setting up the listener, and inside the listener's callback). The problems I usually run into is the selector I think exists doesn't or the event gets bound too early and misses the selector.