Info

Add 10 classes to 500 elements, then remove 1 class from the same 500 elements.

Preparation code

<script src="//code.jquery.com/jquery-git.js"></script>
 

<script>
  var listStr = "alpha beta delta gamma epsilon zeta eta theta iota kappa",
      thismany = 500,
      $a = $(false),
      $b = $(false);
  
  while (thismany--) {
   $a.push($('<div/>').appendTo('body')[0]);
   $b.push($('<div/>').appendTo('body')[0]);
  }
  
  
  //  Create functions to wrap up the behaviour that 
  //  native classList would need to enforce to be
  //  equally tested against jQuery.
  //  jQuery allows for multiple classes
  //  to be passed as a string
  $.fn.addToClassList = function(str) {
  
   var classes = str.split(/\s/),
       classLen = classes.length;
  
  
   for (var e = 0; e < this.length; e++) {
    for (var i = 0; i < classLen; i++) {
     this[e].classList.add(classes[i]);
    }
   }
   return this;
  };
  
  $.fn.removeFromClassList = function(str) {
  
   var classes = str.split(/\s/),
       classLen = classes.length;
  
   for (var e = 0; e < this.length; e++) {
    for (var i = 0; i < classLen; i++) {
     this[e].classList.remove(classes[i]);
    }
   }
   return this;
  };
</script>

Preparation code output

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$a.addToClassList(listStr);

$a.removeFromClassList("kappa");

$b.addClass(listStr)

$b.removeClass("kappa")

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Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL. Here’s a list of current revisions for this page:

• Revision 1: published by Rick Waldron on 1st February 2011
• Revision 2: published on 26th May 2011

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