Info

See if push and index are really as far apart as is rumored (namely, Google says in their JavaScript Style Guide that, "Note that since assigning values to an array is faster than using push() you should use assignment where possible". However, I'm finding the opposite in these tests...

http://google-styleguide.googlecode.com/svn/trunk/javascriptguide.xml

Preparation code

<script>
  var arr = [], i = 0;
</script>
<script>
  Benchmark.prototype.teardown = function() {
    arr = [], i = 0;
  };
</script>

Test runner

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if (i < 10000000) {
arr[i++] = 'boo';
}

if (i < 10000000) {
arr.push('boo');
}

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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 by Mike McCaughan on 30th June 2011
• Revision 2: published on 1st July 2011
• Revision 3: published on 11th October 2012
• Revision 4: published on 11th October 2012
• Revision 6: published on 11th October 2012 and last updated on 12th October 2012
• Revision 7: published on 12th October 2012
• Revision 8: published on 15th April 2013
• Revision 9: published 2 weeks ago

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