Preparation code

 
<script>
  Benchmark.prototype.setup = function() {
    var a = [];
  };
</script>

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Object.prototype.toString.call(a) === '[object Array]';

Array.isArray(a);

a instanceof Array

a.constructor === Array

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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 Mark on 28th April 2015
• Revision 2: published on 2nd May 2015
• Revision 3: published on 25th May 2015
• Revision 4: published on 14th June 2015
• Revision 5: published by Timoteo on 5th August 2015
• Revision 6: published on 27th August 2015
• Revision 7: published by Dom on 15th September 2015
• Revision 8: published by Dom on 15th September 2015
• Revision 9: published by Neta Alon on 23rd November 2015
• Revision 10: published by Bort on 30th November 2015
• Revision 11: published on 9th December 2015
• Revision 12: published on 15th December 2015
• Revision 13: published on 15th December 2015
• Revision 14: published on 21st February 2016

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