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

JavaScript performance comparison

Revision 8 of this test case created by

Preparation code

 <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.7/angular.min.js"></script>

 <script src="http://underscorejs.org/underscore-min.js"></script>
      
<script>
Benchmark.prototype.setup = function() {
  var sum = 0;
  var arr = [];
  var myFunc = function() {
    sum += 1;
  }
  for (var i = 0; i < 100000; i++) {
    arr.push(i)
  }

};
</script>

Preparation code output

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

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
angular foreach
angular.forEach(arr, myFunc);
pending…
underscore foreach
_.each(arr, myFunc);
pending…
for loop
for (var i = 0; i < arr.length; i++) {
  sum += 1;
};
pending…
for loop reverse
for (var i = arr.length - 1; i >= 0; i--) {
  sum += 1;
};
pending…
for loop with caching
for (var i = 0, len = arr.length; i < len; i++) {
  sum += 1;
};
pending…
browser forEach
arr.forEach(myFunc);
pending…

Compare results of other browsers

Revisions

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