Create a Custom “:checked” Pseudo Selector for MooTools 1.2

By  on  

A few weeks back, I showed you how to create a custom ":selected" pseudo selector for use in MooTools. It was just a small snippet but I've found it incredibly useful, as has been the ":checked" pseudo selector I've been using.

The XHTML

	<input type="checkbox" name="mycheckbox" value="1" checked="checked" />
	<input type="radio" name="mycheckbox" value="1" checked />

Above are examples of checked elements.

The MooTools JavaScript

	Selectors.Pseudo.checked = function(){
		return ('input' == this.get('tag') && ('radio' == this.get('type') || 'checkbox' == this.get('type')) && this.checked);
	};

Of course, you could always try to retrieve checked elements using "input[checked=checked]," but that code is case-sensitive and may not always return checked elements. What other pseudo selectors may be useful for MooTools?

Cloudinary

Recent Features

Incredible Demos

  • By
    WebKit-Specific Style:  -webkit-appearance

    I was recently scoping out the horrid source code of the Google homepage when I noticed the "Google Search" and "I'm Feeling Lucky" buttons had a style definition I hadn't seen before:  -webkit-appearance.  The value assigned to the style was "push-button."  They are buttons so that...

  • By
    iPad Detection Using JavaScript or PHP

    The hottest device out there right now seems to be the iPad. iPad this, iPad that, iPod your mom. I'm underwhelmed with the device but that doesn't mean I shouldn't try to account for such devices on the websites I create. In Apple's...

Discussion

  1. thomasd

    One time I needed an empty value selector for input elements:

    Selectors.Pseudo.novalue = function(){
        return (this.tagName.toLowerCase() == 'input' && this.value === '');
    };
    

    Or is there a way to test an empty attribute with CSS-Selectors, something like “input[value=]”? That didn’t worked in my case.

  2. @thomasd: I like your “novalue” pseudo selector. As for your question, try this:

    input[value=”]

  3. Marcelo

    David, your blog is the best, ever!

    I love your articles, and I always use your tips.

    hugs

  4. thomasd

    @david: input[value=”] doesn’t work.
    But the pseudo selector works quite well.

    I really love mootools and the way it works!

  5. Just a note though, :checked is already in Mootools Selectors source. http://tr.im/1n83

  6. @Lim Chee Aun: Cool! It’s not in 1.2 so this must be new.

  7. Jon Bomgardner

    I know this entry is a tad old but I was wondering if this was tested in IE8? I’m using it in a project and in the one place I use this selector IE8 has fits. Problem is I can’t see anything there that would cause it….

    Your thoughts??

    Jon

Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!