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#278 closed enhancement (worksforme)

Opened October 13, 2006 11:36PM UTC

Closed November 11, 2006 11:53AM UTC

Last modified March 18, 2014 03:34PM UTC

Make :contains() be optionally case insensitive

Reported by: yehuda Owned by:
Priority: trivial Milestone:
Component: core Version:
Keywords: Cc:
Blocked by: Blocking:

At the moment, :contains() is case sensitive only.

We need a way to make it optionally case insensitive.

Attachments (0)
Change History (10)

Changed October 16, 2006 12:41AM UTC by anonymous comment:1

priority: majortrivial
type: bugenhancement

Changed November 11, 2006 11:53AM UTC by joern comment:2

milestone: 1.0
resolution: → worksforme
status: newclosed
version: 1.0

This could easily be added when required:

$.extend($.expr[':'], {

"contains-ic": "jQuery.fn.text.apply([a])toLowerCase().indexOf(m[3].toLowerCase())>=0",


Untested, but pretty simple.

Changed September 03, 2008 02:13PM UTC by weaverryan comment:3

If anybody's looking for a tested version of the above:

	jQuery.extend(jQuery.expr[':'], {
		"contains-ic": "jQuery.fn.text.apply([a]).toLowerCase().indexOf(m[3].toLowerCase())>=0",

Changed January 02, 2009 10:53PM UTC by thewiredmous comment:4

Thanks weaverryan, however I had an error with this code in Internet Explorer until i removed the extra comma from the second line:


jQuery.extend(jQuery.expr[':'], {

"contains-ic": "jQuery.fn.text.apply([a]).toLowerCase().indexOf(m[3].toLowerCase())>=0",



jQuery.extend(jQuery.expr[':'], {

"contains-ic": "jQuery.fn.text.apply([a]).toLowerCase().indexOf(m[3].toLowerCase())>=0"


Works like a charm now!

Changed October 02, 2009 05:58PM UTC by Abro comment:5

Replying to [comment:5 mike123]:

could someone please del. this spam?

@thewiredmous :

Firefox gives me a "X is not defined in jquery-1.3.2.js"

Changed October 02, 2009 06:10PM UTC by Abro comment:6

Replying to [comment:6 Abro]:

$.extend($.expr[':'], {
  'containsi': function(elem, i, match, array)
    return (elem.textContent || elem.innerText || '').toLowerCase()
    .indexOf((match[3] || "").toLowerCase()) >= 0;

Works - thanks to Eric.

Changed July 29, 2011 03:55PM UTC by reesd comment:7

I think contains should be case insensitive in the core.

Changed October 11, 2012 11:33PM UTC by anonymous comment:8

Agreed, insensitive should be preferred by default.

Changed October 11, 2012 11:50PM UTC by dmethvin comment:9

description: At the moment, :contains() is case sensitive only.\ \ We need a way to make it optionally case insensitive.At the moment, :contains() is case sensitive only. \ \ We need a way to make it optionally case insensitive.

In addition to the one mentioned above, there is one (icontains) in the docs for Sizzle:

As far as changing the default, forget it. That would break code. The tools are right here for meeting your needs, they don't need to be in core for you to use them.

Changed March 18, 2014 03:34PM UTC by comment:10

I appreciate that :contains() cannot be changed to case-insensitive by default because it would break existing code. However, it's unacceptable to make the user search the Internet to find the workaround mentioned in this ticket. Please add a :containsIgnoreCase() selector to base jQuery. It's silly that it doesn't have this already.