isRealNumber vs isFinite

JavaScript performance comparison

Revision 3 of this test case created by isNaN vs ==

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    function isRealNumber(n) {
        return (n == n) && n !== (n+1);
    }
};
</script>

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Testing in unknown unknown
Test Ops/sec
isRealNumber
isRealNumber(47) && isRealNumber(null);
pending…
isFinite
isFinite(47) && isFinite(null);
pending…

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Revisions

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