Check with javascript if event handler was added to attribute

Question

Hi working with CRM Dynamics 2015 and i want to check in my javascript code if event handler was already added before I add it once more Thanks

possible duplicate of [How to check whether dynamically attached event listener exists or not?](http://stackoverflow.com/questions/11455515/how-to-check-whether-dynamically-attached-event-listener-exists-or-not) — Bhojendra Rauniyar, Jul 15 '15 at 11:16
I not working with regular document element, I am use Xrm that exist in SDK — Sergey, Jul 15 '15 at 11:21
Just curious - how could that be that your application doesn't know has event handler attached already or not? — Andrew Butenko, Jul 15 '15 at 12:21
I run script that add event handler to element when other element's value was changed, in case if value changed once then handler was added and no need to add it again — Sergey, Jul 15 '15 at 13:15

score -1 · Answer 1 · edited May 23 '17 at 11:57

-1

You can get a list of events currently assigned to an element by using the following JQuery code.

$._data( $('.element')[0], 'events' );

If element has no events, it returns "undefined"

Edit:

edited May 23 '17 at 11:57

Community

answered Jul 15 '15 at 11:51

Mouneer

As a side note, author did not specify whether he is using jQuery. – POZ Jul 15 '15 at 12:28
Thank you I added a reference for native solutions – Mouneer Jul 15 '15 at 12:35

1 Answers1