Accessing Object properties

JavaScript performance comparison

Test case created

Info

What is the fastest way to access an object property?

obj.property or obj['property'] ?

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var obj = {
        property: 'value',
        test: 12345,
        anothertest: [1, 2, 3, 4],
        hohoho: {
            kkk: 'hehehe',
            yeye: 'glu glug'
        },
        end: 'final'
    };
};
</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
Direct access
obj.end
pending…
Direct string access
obj['end']
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