unshift-shift vs push-pop

JavaScript performance comparison

Test case created by Josh

Preparation code

<script>
  var arr = [];
</script>

Test runner

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

Java applet disabled.

Testing in unknown unknown
Test Ops/sec
unshift-shift
var foo = arr.unshift(1);
var bar = arr.shift();
pending…
push-pop
var foo = arr.push(1);
var bar = arr.pop();
pending…

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

Compare results of other browsers

0 comments

Add a comment