native vs typed js array speed
JavaScript performance comparison
Preparation code
<script>
var arraySize = 1000;
var typedArray = new Float32Array(4 * arraySize);
var nativeArray = new Array(arraySize);
for (var i =0; i < arraySize; ++i) {
value = i % 3 ? 1/i : i.toString();
typedArray[i] = i % 2 ? value : NaN;
nativeArray[i] = i % 2 ? value : NaN;
}
</script>
<script>
Benchmark.prototype.setup = function() {
var sum = 0;
};
Benchmark.prototype.teardown = function() {
if (!sum == 5000) throw Error("Invalid Result " + sum);
};
</script>
Test runner
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Java applet disabled.
Test | Ops/sec | |
---|---|---|
Native array isNaN
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pending… |
Typed array isNaN
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pending… |
Native Array n[i]!==n[i]
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pending… |
Typed array n[i]!=n[i]
|
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pending… |
Native Array n!==n
|
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pending… |
Typed array n!==n
|
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pending… |
Compare results of other browsers
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