performance frozen object

JavaScript performance comparison

Revision 15 of this test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    o1 = Object.create(null);
    o2 = Object.create(null);
   
    o1.a = 1;
    o2.a = 1;
    Object.seal(o2);
};
</script>

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Testing in unknown unknown
Test Ops/sec
non-sealed object
for(var key in o1);
pending…
sealed object
for(var key in o2);
pending…

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