jQuery check if onClick exists on element

Question

I found the way to check if event exists on element. But it's not work on the events which is not delegated by jQuery:

When I try,

$("a").data("events");

for this.

<a href="#" onClick="alert('Hello, World!')" />

It returned undefined.

Is there any way to check if onClick exists on elements with jQuery?

Tim Ebenezer · Accepted Answer · 2009-12-07 10:35:23Z

21

You can do:

if ($('a').attr("onClick") != undefined) {}

answered Dec 7, 2009 at 10:35

Tim Ebenezer

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Comments

Gabriel Hautclocq · Accepted Answer · 2011-12-28 09:29:40Z

8

Just do:

if( myelement.onclick != null )
{
   //onclick exists
}
else
{
   //onclick doesn't exist
}

No need for jQuery.

answered Dec 28, 2011 at 9:29

Gabriel Hautclocq

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1 Comment

Will Hancock Over a year ago

I'm trying to test if an event listener has been setup as part of a JS Unit test... how how can i test if it has been setup or not?? This isn't working, always returns true... console.log(document.body.click.length); document.body.addEventListener('click', function () { alert('hi')},false) console.log(document.body.click.length);

pencilslate · Accepted Answer · 2012-08-17 23:29:42Z

3

if( $('#elementName').click == undefined)  
   { //event handler doesn't exist }
else 
   { //handler exists }

answered Aug 17, 2012 at 23:29

pencilslate

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Comments

Mahesh Velaga · Accepted Answer · 2009-12-07 18:18:41Z

0

I think the following things should also work

if ($(yourElement).attr("onClick").length != 0) {}

if ($(yourElement).attr("onClick").size() != 0) {}

Thanks

answered Dec 7, 2009 at 18:18

Mahesh Velaga

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Comments

Chef Pharaoh · Accepted Answer · 2012-11-30 05:04:42Z

0

For sure there are some valid answers here, this was a good one that got me going.

if ($('a').attr("onClick") != undefined) {}

But I found the best answer for you, as it was for since we are both dealing with hyperlinks, would looking for the href attribute.

if ($('a').attr("href") != undefined) {}

I particularly liked this approach.

answered Nov 30, 2012 at 5:04

Chef Pharaoh

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