Preparation code

 
<script>
  Benchmark.prototype.setup = function() {
    var a = [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31];
  };
</script>

Test runner

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var b = a.concat([]);
 

var b = a.slice(0);

var b = [];
for( var i=0, l = a.length; i < l; i++ ){
    b[i] = a[i];
}

var l = a.length, b = new Array(l);
for( var i=0; i < l; i++ ){
    b[i] = a[i];
}

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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 13th June 2012
• Revision 2: published by Tyler Young on 13th June 2012
• Revision 3: published by zaphod1984 on 25th January 2013

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