Jquery each vs Underscore each vs For loops (v4)

Revision 4 of this benchmark created by Roberto Huertas on

Preparation HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
</script>
<script src="http://documentcloud.github.com/underscore/underscore-min.js">
</script>

Setup

var arr = [];
  for (var i = 0; i < 10000; i++) {
    arr.push({
      Number: i
    });
  };
  var e = null;
  
  function Named(o, i) {
    e = o;
  };

Test runner

Ready to run.

Testing in
TestOps/sec
Jquery each
$.each(arr, function(i, o) {
  e = o;
});
ready
Underscore each
_.each(arr, function(o, i) {
  e = o;
});
ready
For normal
for (var i = 0, len = arr.length; i <= len; i++) {
  e = arr[i];
};
ready
For reversed
for (var l = arr.length; l >= 0; l--) {
  e = arr[l];
};
ready
Native array forEach
if (arr.forEach) {
  arr.forEach(function(o, i) {
    e = o;
  });
};
ready
Native array forEach with Named function
if (arr.forEach) {
  arr.forEach(Named);
};
ready

Revisions

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