for loop test

JavaScript performance comparison

Revision 4 of this test case created by Kyle Simpson

Preparation code

<script>
  var blah = Array(1000);
</script>

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Testing in unknown unknown
Test Ops/sec
Forward ++i
for (var i = 0; i < 1000; ++i) {
 blah[i] = 1;
}
pending…
Backward --i
for (var i = 999; i >= 0; --i) {
 blah[i] = 1;
}
pending…
Forward i++
for (var i = 0; i < 1000; i++) {
 blah[i] = 1;
}
pending…
Backward i--
for (var i = 999; i >= 0; i--) {
 blah[i] = 1;
}
pending…
Backward without conditional
for (var i = 1000; i;) {
 blah[--i] = 1;
}
pending…

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Revisions

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