array create: slice call vs for

JavaScript performance comparison

Test case created by damele0n

Preparation code

<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<div class="hoge"></div>
<script>
Benchmark.prototype.setup = function() {
    var nodeArr = document.getElementsByClassName("hoge");
};
</script>

Preparation code output

Test runner

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

Java applet disabled.

Testing in unknown unknown
Test Ops/sec
slice call
[].slice.call(nodeArr);
pending…
for
var arr = [];
for (var i = 0, iz = nodeArr.length; i < iz; ++i) {
arr[i] = nodeArr[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