Comments on: Extending jQuery’s selector capabilities

By: ChiangMai Guide And Tour

ChiangMai Guide And Tour — Sun, 01 Nov 2009 01:45:50 +0000

Nice.., good information for selector extends

By: Trygve Andersen

Trygve Andersen — Thu, 03 Sep 2009 21:25:50 +0000

Should this work in IE7?

$(‘div.someClass:width(>500)’).remove();

I’ve noticed that IE7 appears to ignore the class selector and iterates though every DIV checking the width. Chrome & FF work fine. I fixed it by doing this…

$(‘div.someClass’).filter(‘:width(>500)’).remove();

Did I do something wrong?

By: WSPanic

WSPanic — Wed, 29 Jul 2009 17:04:09 +0000

Wow… Great post. I was in need of a solution to check width of all elements in a given block and if greater than a specified width set them to that width if they exceed it. Your width selector example fits the bill…

Also your examples of using the ‘data’ function opened up my eyes to some possibilities.

By: endrew

endrew — Thu, 16 Jul 2009 12:58:16 +0000

@Dan: $.data(this)

By: Dan

Dan — Mon, 22 Jun 2009 22:55:31 +0000

Hi, I’m having trouble using this. As an aid to the my co-developer, I’d like to log the data of any element that has it – what am I doing wrong?

$(':data').each(
 function()
  {							
    console.info( $(this).data() );
  }
)

By: Pim

Pim — Tue, 02 Jun 2009 18:44:10 +0000

@Anon,
Great thanks for the tip. I have added the regex support.
Thank you very much for the code/info.

By: Anon

Anon — Fri, 29 May 2009 15:44:23 +0000

Hi Pim, you can add ~= operator for testing regular expression

case ‘~’: // regular expression
exp = querySplitted[1].substr(1,querySplitted[1].lastIndexOf(‘/’)-1);
modif = querySplitted[1].substr(querySplitted[1].lastIndexOf(‘/’)+1)
re = new RegExp( exp, modif);
return re.test(checkAgainst);
break;

By: PIm

PIm — Tue, 26 May 2009 10:25:00 +0000

Great article and great selectors.
I especially like the :data() selector. However I needed one that allowed me to query for data objects which are specified like this:

$('elem').data('foo', {bar:'el', baz:{a:2, b:'hai'}, bla:'x'});

So I decided to write my own selector which allows for querying like this:

$('elem:data("foo.baz.b=hai")');

It does not support regexes like yours, however you can do ^= $= != *= like the attribute selectors.
You can have a look at the sourcecode here.

Thanks for the article as this was the article that thought me how to write :selectors in the first place. And inspired me how to create the selector.

By: Martin

Martin — Thu, 12 Mar 2009 21:47:37 +0000

Great post. Really, really useful.

I just started using jquery in earnest in the last two weeks or so. I keep getting fascinated by the power of this lib.

I didn’t know it was so easy to extend the selectors. I came here searching with Google for a way to select elements with a certain. Like “find all divs with background-color: red”.

That is not AFAIK possible with jquery out of the box, but it seems to be simple to create such a selector!

Thanks a million!

By: Gonzalo Arreche

Gonzalo Arreche — Tue, 10 Feb 2009 17:41:21 +0000

very nice.. really useful.. thanx.. 😛