Preparation code

      
      <script>

        Benchmark.prototype.setup = function() {

          
  var arr = [1, 2, 3, 4, 5, 6, 7];
  
  function fn_unshift() {
    arr.unshift(0);
    return arr;
  }
  
  function fn_concat_init() {
    return [0].concat(arr)
  }
        
  };


      
</script>
    

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fn_unshift()

fn_concat_init()

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Revisions

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• Revision 1: published joel on 2015-12-2
• Revision 4: published on 2016-1-4
• Revision 5: published on 2016-1-7
• Revision 6: published on 2016-1-7
• Revision 7: published on 2016-1-7
• Revision 8: published on 2016-1-8
• Revision 9: published mvedie on 2016-1-8
• Revision 10: published mvedie on 2016-1-8
• Revision 11: published mvedie on 2016-1-8
• Revision 12: published kev on 2016-1-24

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