Empty Array vs. length of array.

JavaScript performance comparison

Revision 3 of this test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var nodes = 50;
};
</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
array with length
var result = new Array(nodes);
for (var i = 0; i < nodes.length; i++) {
  result[i] = 'asdfasdfasdfasdfasdaf';
}
pending…
empty array
var result = [];
for (var i = 0; i < nodes.length; i++) {
  result[i] = 'asdfasdfasdfasdfasdaf';
}
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