Shift and pop

JavaScript performance comparison

Test case created by Jonathan Perry

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var array = [ ];
    while (array.length < 1008) {
        array = array.concat([ "A", "B", "C", "D", "E", "F", "G", "H", "I" ]);
    }
};
</script>

Test runner

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Testing in unknown unknown
Test Ops/sec
Shift
                        var key;
                        while (array.length) {
                                key = array.shift();
                        }
 
pending…
Pop
                        var key;
                        while (array.length) {
                                key = array.pop();
                        }
 
pending…

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