Push vs length

JavaScript performance comparison

Revision 14 of this test case created by Adam Poczatek

Info

Array population in javascript - push vs array.length

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
var myArray = [];

for (var i = 0, l = 10000; i < l; i++) {
    myArray[myArray.length] = i;
}
pending…
push
var myArray = [];

for (var i = 0, l = 10000; i < l; i++) {
    myArray.push(i);
}
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