While vs For Queue

JavaScript performance comparison

Revision 29 of this test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var items = [],
        total = 0,
        i = 0,
        j = 0,
        len = 0;
    for (; i < 100000; i++) {
      items[i] = Math.ceil(Math.random() * 10);
    }
    len = items.length;
};
</script>

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Testing in unknown unknown
Test Ops/sec
For
for (; j < len; j++) {
  total += items[j];
}
pending…
While
while (items.length) {
  total += items.shift();
}
pending…
Do
do {
  total += items.shift();
} while (items.length);
pending…

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