Preparation code

 
<script>
  Benchmark.prototype.setup = function() {
    var arr = [];
    for (var i = 0; i < 1000; i++) arr.push(i);
    var len = arr.length;
    var i;
  };
</script>

Test runner

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while (len-- >= 0) {
  var o = arr[len];
}

for (; len-- >= 0;) {
    var o = arr[len];
}

arr.forEach(function(t) {
  var o = t;
})

for (i in arr) {
  var o = arr[i];
}

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Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL. Here’s a list of current revisions for this page:

• Revision 1: published by Kamyar Nazeri on 10th January 2013
• Revision 2: published by Kamyar Nazeri on 11th January 2013
• Revision 3: published on 16th January 2013

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