keys vs array (v3)

Revision 3 of this benchmark created on

Preparation HTML

<script>
  function getFunc(i) { 
    return function () {
      return i;
    };
  }
  var o = {};
  for (var i = 0; i < 1000; i++) {
    o[i] = getFunc(i);
  }
</script>

Test runner

Ready to run.

Testing in
TestOps/sec
keys
var a = Object.keys(o);
for (var i = 0, len = a.length; i < len; i++) {
  o[a[i]]();
}
ready
arr
for (var k in o) {
  if (o.hasOwnProperty(k)) o[k]();
}
ready
arr without test
for (var k in o) {
  o[k]();
}
ready

Revisions

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