Hash v array

JavaScript performance comparison

Test case created by Josh

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var arr = [], hash = {};
    for (var i = 0; i < 100; i++) {
        arr.push({n:i, val:true});
        hash[i] = true;
    }
};
</script>

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Testing in unknown unknown
Test Ops/sec
Hash
var n = Math.floor(Math.random() * 100), r = hash[n];
pending…
Array
var n = Math.floor(Math.random() * 100), r;

for (var i = 0; i < arr.length; i++) {
    if (arr[i].n == n) {
        r = arr[i].val;
        break;
    }
}
pending…

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