Info

Testing the performance between "arr[arr.length] = object" and "arr.push(object)".

Preparation code

 
<script>
  Benchmark.prototype.setup = function() {
    object = {
        "firstName": "Steve",
        "lastName": "Johnson"
    };
    
    arr = [1, 2];
  };
</script>

Test runner

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arr[arr.length] = object;

arr.push(object);

arr.concat(object);

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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:

• Revision 1: published on 5th June 2012
• Revision 2: published on 27th December 2012

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