performance frozen object

JavaScript performance comparison

Revision 9 of this test case created by Ruben Verborgh

Preparation code

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

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Testing in unknown unknown
Test Ops/sec
non-frozen object with existing key
if('a' in o1);
pending…
frozen object with existing key
if('a' in o2);
pending…
non-frozen object with non-existing key
if('b' in o1);
pending…
frozen object with non-existing key
if('b' in o2);
pending…

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