Angular foreach vs Underscore foreach vs native For Loop vs reverse native for loop (v9)

Revision 9 of this benchmark created by viktor on

Description

Angular 1.0.7 stable forEach vs Underscore.js each

Preparation HTML

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.0-rc.2/angular.min.js"></script>


 <script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
 <script src="http://underscorejs.org/underscore-min.js"></script>

Setup

(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.
          && fn.call( jq[0], i, jq ) !== false
        ) {}
        
        // Return the initial jQuery object for chainability.
        return this;
      };
      
    })(jQuery);
    
    var sum = 0;
    var arr = [];
    var myFunc = function() {
      sum += 1;
    }
    for (var i = 0; i < 100000; i++) {
      arr.push(i)
    }

Test runner

Ready to run.

Testing in
TestOps/sec
angular foreach
angular.forEach(arr, myFunc);
ready
underscore foreach
_.each(arr, myFunc);
ready
for loop
for (var i = 0; i < arr.length; i++) {
  sum += 1;
};
ready
for loop reverse
for (var i = arr.length - 1; i >= 0; i--) {
  sum += 1;
};
ready
for loop with caching
for (var i = 0, len = arr.length; i < len; i++) {
  sum += 1;
};
ready
browser forEach
arr.forEach(myFunc);
ready
jQuery .each
$.each(arr, myFunc);
ready
.each2
$.each2(arr, myFunc);
ready

Revisions

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