push vs initialisation

JavaScript performance comparison

Test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var arr = [];
    var count = 200000;
};
</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
initialise
arr.length = count;
for(var i = 0; i < count ; i++)
    arr[i] = true;
pending…
push
for(var i = 0; i < count; i++)
    arr.push(true)
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