jQuery event triggering on all listeners

Question

I have a custom event I've made which I would like to trigger at some point with no relevance to selection.

I.E - I would like to do something that would behave as running

$("*").trigger('customEvent');

But jQuery documentation warns that using the universal selector is very slow. Is there a way to trigger all the object that are bound to a specific event without having to use the universal selector $("*")?

Thanks!

P.S - I'm currently using a specific class called custom_event_listener and use $('.custom_event_listener').trigger('customEvent') to avoid using a universal selector. I'm wondering if there is a way to avoid the use of a class.

Can't you let this event bubble and capture it at a higher level? — Ortiga
– Ortiga, Commented Jul 28, 2011 at 14:01
So, you want to do something to all elements, but not using a select all elements. There's gotta be another way you can narrow the selection down, but we can't know what it is without more info on what you're doing. — Zirak
– Zirak, Commented Jul 28, 2011 at 14:02
@Andre I'm not sure what that means. sort of a newbie in jQuery. I'll google 'bubble jQuery events' and see if it helps. — Ben
– Ben, Commented Jul 28, 2011 at 14:03
@Zirak The only information I have regarding the selection is "People who have bound on 'customEvent'". Is there maybe a selector that uses this data? — Ben
– Ben, Commented Jul 28, 2011 at 14:04
Ben, I think Nick Craver's answer solves your problem. Anyway, bubbling is how javascript (not jQuery) event propagates. You should read about it, it's very important to know when dealing with events. Cheers. — Ortiga
– Ortiga, Commented Jul 28, 2011 at 14:47

Nick Craver · Accepted Answer · 2011-07-28 14:02:16Z

15

You can trigger an event on everything that has a handler bound like this:

$.event.trigger('customEvent');

This loops through $.cache to find what actually has a handler, then fires on those elements...rather than just finding every element and firing the event on each one.

answered Jul 28, 2011 at 14:02

Nick Craver

631k138 gold badges1.3k silver badges1.2k bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Ben Over a year ago

Best answer so far. If I don't get an answer that narrows it down even further I'll mark this as the answer.

Marc-André Lafortune Over a year ago

This is undocumented and deprecated: github.com/jquery/jquery/blob/…

Collectives™ on Stack Overflow

jQuery event triggering on all listeners

1 Answer 1

2 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related