for VS for-in

Benchmark created on

Preparation HTML

<script>
  var array = new Array();
  for (var x = 0; x < 1000000; x++) {
   array[x] = x;
  }
</script>

Test runner

Ready to run.

Testing in
TestOps/sec
for
var sum = 0;
var length = array.length;
for (var i = 0; i < length; i++) {
 sum += array[i];
}
ready
for-in
var sum = 0;
for (var i in array) {
 sum += array[i];
}
ready

Revisions

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