uid: floor vs substr

JavaScript performance comparison

Test case created by herby

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    six32 = 32 * 32 * 32 * 32 * 32 * 32;
};
</script>

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Testing in unknown unknown
Test Ops/sec
floor
var uid = Math.floor((Math.random() + 1) * six32).toString(32).substr(1);
pending…
substr
var uid = ((Math.random() + 1) * six32).toString(32).substr(1, 6);
pending…

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