JS: For loop vs Array.indexOf (v223)

Revision 223 of this benchmark created by mat on

Description

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

Preparation HTML

<script>
  var ar = [];

    for(var i = 0; i < 20; i++)
    {
        ar.push({name:i, id:"thing");
    }

var target = ar[10]
</script>

Test runner

Ready to run.

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

Revisions

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