The loops

JavaScript performance comparison

Revision 8 of this test case created

Info

Is the "reverse while" really faster than a normal for loop? And if yes, how much?

Preparation code

 
<script>
  Benchmark.prototype.setup = function() {
    var iterations = 100,
        a = 0,
        i = 0;
  };
</script>

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Testing in unknown unknown
Test Ops/sec
The "reverse while"
 
while (iterations > 0) {
  a = a + 1;
  a = a - 1;
  iterations--;
}
 pending…
The "normal for"
 
for (; iterations > 0; iterations--) {
  a = a + 1;
  a = a - 1;
}
 pending…

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