JS: For loop vs Array.indexOf (v100)

Revision 100 of this benchmark created on

Description

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

Preparation HTML

<script>
  var ar = Array(100000)
  ar[66666] = 5
</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
other for-loop
for (var i = 0, n = ar.length; i < n; i++) {
 if (ar[i] === 5) {
  break;
 }
}
ready
indexOf
var a = ar.indexOf(5);
ready
lastIndexOf
var a = ar.lastIndexOf(5);
ready

Revisions

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