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Looping in Javascript (v65)

Revision 65 of this benchmark created by Fon on May 12, 2015

Description

Testing different types of loops in javascript, assuming you need a reference to each variable.

Preparation HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js">
</script>
<script>
var underscore = _.noConflict();
</script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.5.0/lodash.min.js">
</script>
<script>
var lodash = _.noConflict();
</script>

Setup

var arr = [{
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }, {
      'a': 1,
      'b': 'hello',
      'c': function() {},
      'd': 289,
      'e': 'element'
    }];
    var cb = function(ind, val) {
      // Do nothing else.
    }

Test runner

Ready to run.

Testing in
Test		Ops/sec
JQuery	`var i, arrLen = arr.length; $.each(arr, cb);`	ready
for	`var i, arrLen = arr.length; for (; arrLen--;) { cb(); // Do nothing else. }`	ready
underscore.each	`var i, arrLen = arr.length; underscore.each(arr, cb);`	ready
forEach	`var i, arrLen = arr.length; arr.forEach(cb);`	ready
lodash.each	`var i, arrLen = arr.length; lodash.each(arr, cb);`	ready
for in	`var i, arrLen = arr.length; for (i in arr) { cb(); // Do nothing else. }`	ready
while	`var i, arrLen = arr.length; while (arrLen--) { cb(); // Do nothing else. }`	ready
do while	`var i, arrLen = arr.length; do { cb(); // Do nothing else. } while (arrLen--);`	ready

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.

Revision 1: published on October 9, 2013
Revision 2: published on October 28, 2013
Revision 3: published on December 6, 2013
Revision 4: published on December 6, 2013
Revision 5: published on December 24, 2013
Revision 6: published by Bryan Rayner on January 4, 2014
Revision 7: published on January 14, 2014
Revision 8: published on January 18, 2014
Revision 9: published by Jorge Castro on January 19, 2014
Revision 10: published on January 23, 2014
Revision 11: published by Shawn Terry on January 31, 2014
Revision 12: published on February 27, 2014
Revision 13: published by Morgan Roderick on April 13, 2011
Revision 14: published on May 2, 2014
Revision 15: published on May 8, 2014
Revision 16: published on May 10, 2014
Revision 17: published on May 29, 2014
Revision 18: published on June 12, 2014
Revision 19: published by Michael on May 20, 2011
Revision 20: published on July 16, 2014
Revision 21: published by Derek Peterson on August 4, 2014
Revision 22: published on August 8, 2014
Revision 23: published on September 11, 2014
Revision 24: published by hongkhanh on October 9, 2014
Revision 25: published by apla on July 3, 2011
Revision 26: published on October 17, 2014
Revision 27: published on October 17, 2014
Revision 28: published on November 3, 2014
Revision 29: published by AE on November 3, 2014
Revision 30: published on November 7, 2014
Revision 31: published by Bruno Windels on August 2, 2011
Revision 32: published on November 11, 2014
Revision 33: published on August 18, 2011
Revision 34: published on November 14, 2014
Revision 35: published on November 14, 2014
Revision 36: published on December 2, 2014
Revision 37: published on December 9, 2014
Revision 38: published by xShirase on December 9, 2014
Revision 39: published by dennis on December 11, 2014
Revision 40: published by andrew on December 12, 2014
Revision 41: published on September 16, 2011
Revision 42: published on October 10, 2011
Revision 43: published on October 30, 2011
Revision 44: published by Tony Spencer on January 9, 2015
Revision 45: published by frogger on January 22, 2015
Revision 46: published by frogger on January 22, 2015
Revision 47: published by frogger on January 22, 2015
Revision 48: published on November 2, 2011
Revision 49: published on November 2, 2011
Revision 50: published by Justin Lau on January 29, 2015
Revision 51: published on February 18, 2015
Revision 52: published on February 18, 2015
Revision 53: published by Matt Dahl on February 25, 2015
Revision 54: published on February 27, 2015
Revision 55: published on February 27, 2015
Revision 56: published on March 2, 2015
Revision 57: published on March 13, 2015
Revision 58: published on March 20, 2015
Revision 59: published by Suraj Reddy on March 23, 2015
Revision 60: published on March 23, 2015
Revision 61: published on March 27, 2015
Revision 62: published by Adam Kendall on April 3, 2015
Revision 63: published by HP on April 6, 2015
Revision 65: published by Fon on May 12, 2015
Revision 66: published on January 12, 2012
Revision 67: published on February 1, 2012
Revision 68: published on February 4, 2012
Revision 69: published on February 5, 2012
Revision 70: published on February 17, 2012
Revision 72: published on February 22, 2012
Revision 73: published on February 22, 2012
Revision 74: published on March 1, 2012
Revision 75: published on March 1, 2012
Revision 76: published on March 1, 2012
Revision 77: published by Paul Grenier on March 1, 2012
Revision 78: published by Hoisel on March 1, 2012
Revision 79: published on March 2, 2012
Revision 80: published on March 2, 2012
Revision 81: published on March 6, 2012
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