isRealNumber vs isFinite

JavaScript performance comparison

Revision 2 of this test case created by ryanve

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    function isRealNumber(n) {
        return n ? typeof n == 'number' && n !== (n+1) : 0 === n;
    }
};
</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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