Angular foreach vs Underscore foreach vs native For Loop vs reverse native for loop

JavaScript performance comparison

Revision 52 of this test case created by

Preparation code

<script src=""></script>

<script src=""></script>
<script src=""></script>
<script src=""></script>

Benchmark.prototype.setup = function() {
  (function($) {
    // Create a placeholder jQuery object with a length of 1. The single item
    // is completely arbitrary and will be replaced.
    var jq = $([1]);
    $.fn.each2 = function( fn ) {
      var i = -1;
      while (
        // Set both the first element AND context property of the placeholder
        // jQuery object to the DOM element. When i has been incremented past the
        // end, this[++i] will return undefined and abort the while loop.
        ( jq.context = jq[0] = this[++i] )
        // Invoke the callback function in the context of the DOM element,
        // passing both the index and the placeholder jQuery object in. Like
        // .each, if the callback returns `false`, abort the while loop.
        && jq[0], i, jq ) !== false
      ) {}
      // Return the initial jQuery object for chainability.
      return this;
  var sum = 0;
  var arr = [];
  var myFunc = function() {
    sum += 1;
  for (var i = 0; i < 100000; i++) {


Preparation code output

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Testing in CCBot 2.0.0 / Other 0.0.0
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