Cast to Integer Performance

JavaScript performance comparison

Revision 3 of this test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    x = Math.random()*0x7FFFFFFF;
};
</script>

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Testing in unknown unknown
Test Ops/sec
~~x
y = ~~x
pending…
x | 0
y = x | 0
pending…
x >> 0
y = x >> 0
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x << 0
y = x << 0
pending…
x >>> 0
y = x >>> 0
pending…
parseInt(x)
y = parseInt(x)
pending…
Math.floor(x)
y = Math.floor(x)
pending…

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