CODEWITHSUNDEEP
javascript
nativist.bill.cutting
nativist.bill.cutting

Reputation: 1382

Is there a default behavior for adding two of the same event handlers?

On accident, I did something I think might be wrong.

I added two event handlers to the same element/event.

What is the default behavior, or is there one?

That is if you add two click events to the same element. Will they both be fired and in what order.

Upvotes: 0

Views: 30

Answers (2)

Shuhel Ahmed
Shuhel Ahmed

Reputation: 963

Here is what the spec says:

Although all EventListeners on the EventTarget are guaranteed to be triggered by any event which is received by that EventTarget, no specification is made as to the order in which they will receive the event with regards to the other EventListeners on the EventTarget.

http://www.w3.org/TR/DOM-Level-2-Events/events.html

So they will both be fired but the order is not guaranteed.

Upvotes: 1

yoyo
yoyo

Reputation: 722

They will both fired if you bind event by addEventListener or attachEvent. The order is decided by binding order,for example(the code is write in jquery):

 $('#id').bind('click',function(){
  alert(1);
 }).bind('click',function(){
  alert(2)
 });

when you click the element ,you will see alert '1' first, then is '2';

Upvotes: 1

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