Checkbox Filtering Using MooTools ElementFilter

By on  

When I first wrote MooTools ElementFilter, I didn't think much of it. Fast forward eight months later and I've realized I've used the plugin a billion times. Hell, even one of the "big 3" search engines is using it for their maps application. There's one more place I'd like to use it. My employer uses a basic SPAM filtering system which allows me to see emails that were incorrectly (or correctly) caught in SPAM, click a checkbox, and click a "Deliver" button. The problem is that it will catch a bunch of valid emails with very similar subject lines, so I have to hunt down all of the emails, check the email's checkbox, and keep searching. Inefficient to say the least. That's why I've used ElementFilter to find LABEL elements with the given search text and automatically check their checkboxes.

The Sample HTML

<ul id="my-list">
<li><input type="checkbox" id="chkADDRESS" /> <label for="chkADDRESS">ADDRESS</label></li>
<li><input type="checkbox" id="chkAPPLET" /> <label for="chkAPPLET">APPLET</label></li>
<li><input type="checkbox" id="chkAREA" /> <label for="chkAREA">AREA</label></li>
<li><input type="checkbox" id="chkA" /> <label for="chkA">A</label></li>
<li><input type="checkbox" id="chkBASE" /> <label for="chkBASE">BASE</label></li>
<li><input type="checkbox" id="chkBASEFONT" /> <label for="chkBASEFONT">BASEFONT</label></li>
<li><input type="checkbox" id="chkBIG" /> <label for="chkBIG">BIG</label></li>
<!-- ... more ... -->

I've used a simple list of HTML elements for my example. Having 100 "VIAGRA!!!" labels really wouldn't be helpful.

The MooTools JavaScript

/* usage */
window.addEvent('domready',function() {
	var myFilter = new ElementFilter('search-term', '#my-list label', {
		trigger: 'keyup',
		cache: true,
		onShow: function(element) {
			$(element.get('for')).checked = true;
		onHide: function(element) {
			$(element.get('for')).checked = false;

If you aren't familiar with ElementFilter, be sure to read the original post. The only code specific to my purpose is in the onShow and onHide methods. Awesome!

Give it a shot. I'll be bribing my IT team to put something like this in place. It will make managing SPAM much easier!

Track.js Error Reporting

Recent Features

Incredible Demos


  1. Nice! Can this be extended with regular expressions?

  2. David – this is a usability masterpiece. I salute you!

  3. @Chris the Developer: As well you should. ;)

  4. David, simply amazing! You keep on rocking with every Mootools solution.

  5. First time in your blog! Seems quite interesting and of course informative!

  6. rakesh juyal

    Nice one. How about enhancing the code to support multiple search term.

    like if the search term is ap;c then it should select all checkboxes whose label starts with ap [ applet ] or c [ caption, center, cite, code ]

  7. rakesh juyal

    Nice one. How about enhancing the code to support multiple search term.

    like if the search term is ap;c then it should select all checkboxes whose label starts with ap [ applet ] or c [ caption, center, cite, code ]

  8. Mangesh vyas

    Hello sir

    Its really good as always………

  9. scy

    Can this be done with jquery

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

Recently on David Walsh Blog

  • OSCON Portland:  Conference  Discount!

    O'Reilly puts on the best web industry conferences in the world.  These conferences include Fluent Conference, Velocity Conference, and the upcoming OSCON in Portland, Oregon from July 20-24.  Open Source Convention (OSCON) is a conference that focuses specifically on open source developers and the tools and possibilities...

  • Follow Redirects with cURL

    I love playing around with cURL. There's something about loading websites via command line that makes me feel like some type of smug hacker, just like tweeting from command line does. I recently cURL'd the Google homepage and saw the following: I found it weird that Google...

  • Developers Have WordPress, Amateurs Have Squarespace, Professional Designers Have the NEW Webydo!

    Web design platforms have traditionally come in one of two varieties. There are the solutions like WordPress and Drupal that are incredibly powerful, but an understanding of web development and coding is required to be able to use those platforms effectively. On the other side of the...

  • Chris Coyierâs Favorite CodePen Demos II

    Hey everyone! Before we get started, I just want to say it’s damn hard to pick this few favorites on CodePen. Not because, as a co-founder of CodePen, I feel like a dad picking which kid he likes best (RUDE). But because there is just so...

  • GSAP + SVG For Power Users: Motion Along A Path

    Now that the GreenSock API is picking up steam, there are many tutorials and Getting Started guides out there to provide good introductions to the library, not to mention GreenSock’s own Forum and Documentation. This article isn’t intended for beginners, but rather a...