Comments on: Screencast #1 – Event Delegation in jQuery

By: VMV

VMV — Tue, 01 Dec 2009 14:17:31 +0000

Great stuff James, I just started learning event delegation and now I’m much more wiser!

By: Dan

Dan — Tue, 26 May 2009 19:42:35 +0000

great screencast. very informative. All the tutorials on event delegation center around the click() event. I’m trying to get around a performance problem in simply changing the class of a “tr” element upon hover. I am fairly novice and cannot seem to manage the event target and how to delegate the mouse events from the parent table. the problem I’m having is that although in firefox, the page loads quickly, in I.E., there is a lag as all the “tr” elements are bound with the hover event.

By: Daniel

Daniel — Tue, 03 Feb 2009 10:40:58 +0000

Thanks alot. Just starting out with jQuery, and you explained event delegation in a very clear and precise manor. For a first screencast, it was really good. Keep up the good work.

By: eapen

eapen — Tue, 27 Jan 2009 22:37:32 +0000

Brilliant tutorial and thanks for the tip on Widerbug. I installed it now.

By: James

James — Tue, 27 Jan 2009 20:49:13 +0000

Sorry about this late reply!

@Shane, thanks mate, I’m glad you liked it! 🙂

@Jeffrey, cool, thank you for the advice. Btw, I’m currently recording my SC for the NETTUTS competition, should be in by the 31st!

@Eugene, lol, yeh I guess I could have chosen a better example! I completely forgot about that feature when recording it!

@Steve, it’s called Widerbug, it does take some getting used to but it definitely makes using firebug easier on a bigger screen!

By: Steve Robillard

Steve Robillard — Sun, 18 Jan 2009 05:40:52 +0000

You mentioned an extension for firebug y something can you give me the name again so I can find it.

By: eugene

eugene — Wed, 14 Jan 2009 19:32:04 +0000

great job
now i know that this is an example
but jquery’s clone method provide event handler duplication if you pass true to clone

$().clone(true);

i enjoy reading your posts!!!
keep up the great work

By: Jeffrey Way

Jeffrey Way — Wed, 14 Jan 2009 05:35:45 +0000

@James – Try exporting it as an AVI, 640×480, 5 fps, and then upload it to Blip. They do a really good job with the converting…almost WYSIWYG.

By: Shane

Shane — Tue, 13 Jan 2009 21:19:08 +0000

The screencast is great James. You should be proud of yourself – the content of the screencast is spot-on, and the odd ‘um’ and ‘ah’ doesn’t take anything away from the technical expertise on show.

I also agree with Rob of course – big up to the Brits! 🙂

By: Marcus

Marcus — Tue, 13 Jan 2009 14:50:41 +0000

Great screencast James! We need more on event delegation and how to use it properly.
The stuff you do with the event object for IE isn’t necessary as far as I can find out. According to the jQuery web site the event object that gets passed is standardized in all browsers.

Just writing e.target.nodeName for example works in IE as well without first running the conditional statement you set up.