now

JavaScript performance comparison

Revision 2 of this test case created by cezary

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var dateNow = Date.now;
    var now = (Date.now || function() { return new Date().getTime(); });
};
</script>

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Testing in unknown unknown
Test Ops/sec
new Date
+new Date();
pending…
Date.now
Date.now();
pending…
new Date().getTime()
new Date().getTime()
pending…
Date.now (shortcut)
dateNow();
pending…
now
now();
pending…

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