Fastest array loops in Javascript

JavaScript performance comparison

Revision 621 of this test case created by Jose Zuniga Marin

Preparation code

<script>
  // Populate the base array
  var arr = [];
  for (var i = 0; i < 1000; i++) {
    arr[i] = i;
  }

  function someFn(ix) {
    return ix * 5 + 1 / 3 * 8;
  }
</script>
      
<script>
Benchmark.prototype.teardown = function() {
  var l = arr.length;
  while(--l) {
    someFn(arr[l]);
  }

};
</script>

Test runner

Warning! For accurate results, please disable Firebug before running the tests. (Why?)

Java applet disabled.

Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Full cached for
var i =0;
var len = [111,1,1,1].length;

for (i; i < len; i++) {
  console.log(1)
}
pending…

Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL.

0 Comments