array values type

JavaScript performance comparison

Revision 11 of this test case created

Info

all int vs with undefined vs hole

Preparation code

 
<script>
  Benchmark.prototype.setup = function() {
    var array_of_ints = [0.5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
    var array_of_mixed = [0.5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, undefined];
    var array_of_mixed2 = [0.5, 1, 2, 3, 4, 5, 6, 7, 8, ,10];
    
    function sum_of_ints() {
      var sum = 0;
      for (var i = 0; i < array_of_ints.length; i++) {
        sum += array_of_ints[i];
      }
    }
    
    function sum_of_mixed() {
      var sum = 0;
      for (var i = 0; i < array_of_mixed.length; i++) {
        sum += array_of_mixed[i];
      }
    }
    
    function sum_of_mixed2() {
      var sum = 0;
      for (var i = 0; i < array_of_mixed2.length; i++) {
        sum += array_of_mixed2[i];
      }
    }
  };
</script>

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Testing in unknown unknown
Test Ops/sec
array of ints
 
sum_of_ints();
 pending…
array of mixed
 
sum_of_mixed();
 pending…
array of mixed with hole
 
sum_of_mixed2();
 pending…

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