forEach vs for loop with objects

JavaScript performance comparison

Revision 81 of this test case created by Jeff Parrish

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  var arr = [];
  for(var i = 0; i < 100000; i++) {
    arr[i] = {
      asString: i.toString(),
      asInt: i,
      asFunc: function () { return i; }
    };
  }

};
</script>

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
for loop
for (var i = 0, l = arr.length; i < l; i++) {
  arr[i].asString;
  arr[i].asInt;
  arr[i].asFunc();
}
pending…
forEach
arr.forEach(function (v) {
  v.asString;
  v.asInt;
  v.asFunc();
});
pending…

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Revisions

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