Array vs Object lookup

JavaScript performance comparison

Revision 3 of this test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var x = 10;
    var o = {x: 10};
};
</script>

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Testing in unknown unknown
Test Ops/sec
array
var a = x*2;
pending…
object
var b = o.x*2;
pending…

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