JavaScript bitwise NOT vs Math.floor()

JavaScript performance comparison

Revision 9 of this test case created by Kenan Sulayman

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  var numbers = [];
  
  //generate amount random numbers
  for (var i = 0; i < 100000; i++) {
    numbers[numbers.length] = Math.floor(Math.random() * 100000) / 10000;
  }
  
  var test; var i = 0;

};
</script>

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Math.floor()
  test = Math.floor(numbers[++i]);
pending…
bitwise NOT
test = ~~ (numbers[++i]);
pending…
<<0
 test = (numbers[++i]) << 0;
pending…
| 0
  test = numbers[++i] | 0;
pending…
parseInt
  test = parseInt(numbers[i]);
pending…

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Revisions

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