forEach vs loop

JavaScript performance comparison

Revision 108 of this test case created by

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  var arr = [];
  for (var i = 0; i < 1000000; i++) arr[i] = i;
  var sum = 0;
  var fn = function(v) {
    sum = v;
  }

};
</script>

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
forEach
arr.forEach(fn);
pending…
loopBackwards
for (var i = (arr.length - 1); i >= 0; i--) {
  sum = arr[i];
}
pending…
loopForwards
for (var i = 0; i < arr.length; i++) {
  sum = arr[i];
}
pending…
loopForwardsL
for (var i = 0, myL = arr.length; i < myL; i++) {
  sum = arr[i];
}
pending…
forEach(function(v) {})
arr.forEach(function(v) {sum = v;});
pending…
every
arr.every(fn);
pending…

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Revisions

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