Fast Array Foreach

JavaScript performance comparison

Revision 5 of this test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
      // Populate the base array
      var arr = [];
      for (var i = 0; i < 1000; i++) {
        arr[i] = i;
      }
   
      function someFn(i) {
        return i * 3 * 8;
      }
};
</script>

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Testing in unknown unknown
Test Ops/sec
Array.ForEach
arr.forEach(someFn);
 
pending…
For
for (var i = 0, len = arr.length; i < len; i++) {
  someFn(arr[i]);
}
pending…

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