map vs native for loop

JavaScript performance comparison

Revision 14 of this test case created

Info

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

Preparation code


 
<script>
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++) {
      ret.push(fun(testArray[i]));
    }
    return ret;
    }
    function double (x) {
      return x*2;
    }
};
</script>

Preparation code output

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

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