Emptying an array

JavaScript performance comparison

Test case created by Bart Veneman

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var myArray = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 4, 3, 2, 5, 6, 3, 4, 7, 5, 6, 8, 1, 8];
};
</script>

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Testing in unknown unknown
Test Ops/sec
Reinitiate array
myArray = [];
pending…
Set arraylength to 0
myArray.length = 0;
pending…
Set array to undefined
myArray = undefined;
pending…
Set array to null
myArray = null;
pending…

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