JS: For loop vs Array.indexOf (v29)

Revision 29 of this benchmark created on

Description

Testing speed of a standard for loop vs. Array.indexOf.

Preparation HTML

<script>
  var ar = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];

function indexOf (array, value) {
for (var i = 0, l = array.length; i < l; i++) {
 if (array[i] === value) {
  return i;
 }
}
return -1;
}
</script>

Test runner

Ready to run.

Testing in
TestOps/sec
For loop
for (var i = 0; i < ar.length; i++) {
 if (ar[i] === 5) {
  break;
 }
}
ready
indexOf
var a = ar.indexOf(5);
ready
indexOf function
var a = indexOf(ar, 5);
ready

Revisions

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