JS: For loop vs Array.indexOf (v111)

Revision 111 of this benchmark created on

Description

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

Preparation HTML

<script>
var ar = [];
var targetObj;
for(var i=0;i<100000;i++) {
var o = {id: i};
ar.push(o);
if(i === 8875) { targetObj = o; }
}
</script>

Test runner

Ready to run.

Testing in
TestOps/sec
For loop
for (var i = 0; i < ar.length; i++) {
  if (ar[i].id === 8875) {
    break;
  }
}
ready
other for-loop
for (var i = 0, n = ar.length; i < n; i++) {
  if (ar[i].id === 8875) {
    break;
  }
}
ready
indexOf
var a = ar.indexOf(targetObj);
ready

Revisions

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