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?

Thanks.

Answer 1

You can do:

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

Answer 2

Just do:

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

No need for jQuery.

Answer 3

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