Binary shift vs multiply operation

JavaScript performance comparison

Test case created by Joshua Koudys

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var foo = 1;
};
</script>

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Testing in unknown unknown
Test Ops/sec
Multiply by 2
foo = foo * 2;
pending…
Shift by one (equiv to 2*)
foo = foo << 1;
pending…
Multiply by 16
foo = foo * 16;
pending…
Shift by 4
foo = foo << 4;
pending…

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