[].slice vs myArray.slice

JavaScript performance comparison

Test case created by Philip Thrasher

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var myArray = [],
        slice = [].slice;
    for (var i=0,max=1000;i<max;i++) {
        myArray.push(i);
    }
};
</script>

Test runner

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Testing in unknown unknown
Test Ops/sec
[].slice
slice.call(myArray, 0, 500);
pending…
myArray.slice
myArray.slice(0, 500);
pending…

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