forEach vs loop vs ordinary loop (v58)

Revision 58 of this benchmark created on

Preparation HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.5.2/underscore-min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.2.7/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/2.4.1/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 < 1000; i++) {
      arr[i] = i;
    }
    
    var values = [];

Test runner

Ready to run.

Testing in
TestOps/sec
Array#forEach
arr.forEach(function(value) {
  values.push(value);
});
ready
underscore.forEach
_.forEach(arr, function(value) {
  values.push(value);
});
ready
lodash.forEach
lodash.forEach(arr, function(value) {
  values.push(value);
});
ready
angular.forEach
angular.forEach(arr, function(value) {
  values.push(value);
});
ready
for loop
for (var i = 0, len = arr.length; i < len; i++) {
  values.push(arr[i]);
}
ready
for each
for (var x in arr) {
  values.push(arr[x]);
}
 
ready
improved native for loop
for (var i = arr.length - 1; i >= 0; i--) {
        values.push(arr[i]);
};
ready
naive for loop
for (var i = 0; i < arr.length; i++) {
        values.push(arr[i]);
};
ready

Revisions

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