Date.now vs new Date().getTime() vs +new Date

JavaScript performance comparison

Revision 14 of this test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var date = new Date();
};
</script>

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Testing in unknown unknown
Test Ops/sec
Date.now()
Date.now()
pending…
new Date().getTime()
new Date().getTime()
pending…
+new Date()
+new Date()
pending…
(new Date()).getTime()
(new Date()).getTime()
pending…
date.getTime()
date.getTime()
pending…
+date
+date
pending…
date + 0
date + 0
pending…
valueof
(new Date()).valueOf()
pending…

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