for vs forEach vs loop (v43)

Revision 43 of this benchmark created on

Preparation HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.5.1/underscore-min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.1.5/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/1.3.1/lodash.min.js"></script>
<script>
var lodash = _.noConflict();
</script>

Setup

var _ = window._,
     angular = window.angular,
     lodash = window.lodash;
  
  var arr = [];
  for(var i = 0; i < 100; i++) {
    arr[i] = {
      val: i,
      bool: Boolean((i % 3))
    };
  }
  
  var values = [];

Test runner

Ready to run.

Testing in
TestOps/sec
Array#forEach
arr.forEach(function(value) {
  if (value.bool) {
    values.push(value.val);
  }
});
ready
underscore.forEach
_.forEach(arr, function(value) {
  if (value.bool) {
    values.push(value.val);
  }
});
ready
lodash.forEach
lodash.forEach(arr, function(value) {
  if (value.bool) {
    values.push(value.val);
  }
});
ready
angular.forEach
angular.forEach(arr, function(value) {
  if (value.bool) {
    values.push(value.val);
  }
});
ready
standard for
for(var i = 0, l = arr.length; i < l; i++){
  if (arr[i].bool) {
    values.push( arr[i].val );
  }
}
ready
standard for with caching
for(var i = 0, l = arr.length; i < l; i++){
  var itm = arr[i];
  if (itm.bool) {
    values.push( itm.val );
  }
}
ready

Revisions

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