javascript map vs jquery map vs jquery each vs javascript every vs javascript forEach vs javascript Array.map vs lodash.js _.each

JavaScript performance comparison

Revision 13 of this test case created

Preparation code

<script src="//code.jquery.com/jquery-git2.min.js"></script>
<script src="//rawgithub.com/lodash/lodash/2.4.1/dist/lodash.min.js"></script>
<script>
Benchmark.prototype.setup = function() {
    var testArray = new Array(100);
    for (var i = 0; i < 100; i++) {
      testArray[i] = i;
    }
    var map = function(array, mapFunction) {
        var newArray = new Array(array.length);
        for (var i = 0; i < array.length; i++) {
          newArray[i] = mapFunction(array[i]);
        }
        return newArray;
      }
    var double = function(x) {
        return x * 2;
      }
};
</script>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
javascript map
map(testArray, double);
pending…
lodash.js _.each
_.each(testArray, double);
pending…
each
$.each(testArray, double);
pending…
every
testArray.every(function(elem, index) {
  double(elem);
  return true;
});
pending…
forEach
testArray.forEach(double);
pending…
javascript Array.map
testArray.map(double);
pending…
jquery map
$.map(testArray, double);
pending…
lo- map
_.map(testArray, double);
pending…

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Revisions

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