performance frozen object

JavaScript performance comparison

Test case created

Preparation code

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

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

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