Comments on: How to check whether an element exists using jQuery

By: alex

alex — Fri, 26 Feb 2010 09:08:32 +0000

thanks mate! was going crazy over this. thought id kill IE7 one more time because he kept throwing script errors at me

well thanks and have a good one!

By: Radu

Radu — Fri, 12 Feb 2010 15:20:24 +0000

I don’t know but any element in my page is length = 0 . Even html.length = 0.

Just tried with jQuery
$(‘#someDiv’).parents(‘html’).length;
return 0.

Firebug show all my elements 0 length …

Any ideas where the problem could be ?

By: Aaron

Aaron — Thu, 28 Jan 2010 10:39:15 +0000

Cheers John! Saved me looking into it Code on my site is now fixed.

By: john

john — Wed, 27 Jan 2010 23:36:05 +0000

looking at your css the pre tag that surrounds the $ is set to #FFFFFF by the rule #main .article pre unlike the rest of the contnet which is contained within span tag that set the colour to something else

By: Aaron

Aaron — Sat, 16 Jan 2010 22:56:06 +0000

Tim – Something funky is happening with my code snippets on this site. Some characters are being rendered in white text on a white background (the $ symbol in this case). Haven’t got a clue why, but I’ll look into it and try and fix it soon.

By: Tim

Tim — Sat, 16 Jan 2010 20:48:57 +0000

Correct me if I’m wrong (which I very well could be), but I don’t think you’re using the jQuery selector engine without doing $(“#mydiv”) or jQuery(“#mydiv”). You’re using some default javascript selector.

By: Jason

Jason — Wed, 13 Jan 2010 16:02:24 +0000

Excellent tip!! thank you kindly.

By: Erik

Erik — Tue, 15 Dec 2009 20:19:11 +0000

Nice, thanks! exactly what I needed

By: Phil

Phil — Mon, 09 Nov 2009 15:23:44 +0000

Nice and simple – just what I need.

Cheers Aaron

By: Patrick Fitzgerald

Patrick Fitzgerald — Fri, 28 Aug 2009 15:20:21 +0000

The easiest (smallest) test I have found is:
if ($(‘#mydiv’)[0]) {
// do something
}