array vs object member access

JavaScript performance comparison

Revision 4 of this test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var a = [], b = {};
    a.INDEX = 3;
    INDEX = 3;
   
};
</script>

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Testing in unknown unknown
Test Ops/sec
array
a = JSON.parse("[1,2,4]")
a[0] == 1
pending…
object
b = JSON.parse('{"a":1,"b":2,"c":4}')
b.a == 1
pending…

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