for vs forEach

JavaScript performance comparison

Revision 644 of this test case created by Andy Keech

Preparation code

<script>
  var i, values = [],
      sum = 0;
  for (i = 0; i < 10000; i++) {
   values[i] = i;
  }
  
  function add(val) {
   sum += val;
  }
</script>
    

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
for loop, inlined func
(function() {
 var sum = 0;
 for (i = values.length - 1; i >= 0; i--) {
  sum += values[i];
 })();
pending…

Revisions

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