iforor

JavaScript performance comparison

Test case created by Dan Allison

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var obj = {};
};

Benchmark.prototype.teardown = function() {
    delete obj.foo;
};
</script>

Test runner

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Testing in unknown unknown
Test Ops/sec
if
if (!obj.foo) obj.foo = null;
pending…
or
obj.foo || (obj.foo = null);
pending…

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