delete vs null

JavaScript performance comparison

Revision 2 of this test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var A = Object.create(null);
    A.x = 5;
};

Benchmark.prototype.teardown = function() {
    A = null;
};
</script>

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Testing in unknown unknown
Test Ops/sec
delete
delete A.x;
pending…
null
A.x = null;
pending…

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