Empty array

JavaScript performance comparison

Revision 10 of this test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var arr = [{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"},{a: 1, b: "2"}];
};
</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
length
arr.length = 0;
pending…
splice
arr.splice(0, arr.length);
pending…
pop
for(var i = 0; i < arr.length; i++) {
 arr.pop();
}
pending…
slice
for(var i = 0; i < arr.length; i++) {
 arr.shift();
}
pending…

Compare results of other browsers

Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL. Here’s a list of current revisions for this page:

0 comments

Add a comment