map vs native for loop

JavaScript performance comparison

Revision 14 of this test case created


test the performance of the jquery map versus a native for loop map

Preparation code

Benchmark.prototype.setup = function() {
    testArray = new Array(100);
    for(var i = 0; i < 100; i++) {
      testArray[i] = i;
    function map(arr, fun) {
    var ret = [];
    for(var i = 0; i < 100; i++) {
    return ret;
    function double (x) {
      return x*2;

Preparation code output

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Testing in unknown unknown
Test Ops/sec
jquery map
var result =;
for loop map
var result = map(testArray, double);

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