checking array.length vs array[0]
JavaScript performance comparison
Preparation code
<script>
Benchmark.prototype.setup = function() {
function rand(min, max) {
return Math.floor(Math.random() * (max - min + 1)) + min;
}
var buf = [], len = 1e4;
while (len--)
buf.push(rand(0,9));
};
Benchmark.prototype.teardown = function() {
var buf = [], len = 1e4;
while (len--)
buf.push(rand(0,9));
};
</script>
Test runner
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| Test | Ops/sec | |
|---|---|---|
array.length |
|
pending… |
array[0] |
|
pending… |
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Revisions
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- Revision 1: published
- Revision 2: published
- Revision 3: published
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