Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
</script>
<script>
  Benchmark.prototype.setup = function() {
    var h = '';
    var s;
    for (var i = 0; i < 100; i++) {
      if (i % 2 == 0) s = ' style="display:none"';
      else s = '';
      h += '<div' + s + '>String ' + i + '</div>';
    }
    jQuery('body').append(h);
  };
</script>

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jQuery('div:visible').length

jQuery('div').filter(':visible').length

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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 on 22nd November 2011
• Revision 2: published on 1st February 2012

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