JavaScript bitwise NOT vs Math.floor()

JavaScript performance comparison

Revision 47 of this test case created by Casey Occhialini

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 math = {
    floor: function (num) {
      return num | 0
    }
  }

};
</script>

Test runner

Warning! For accurate results, please disable Firebug before running the tests. (Why?)

Java applet disabled.

Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
| 0 as function
var test;
for (var i = 0; i < 100000; i++) {
  test = math.floor(numbers[i]);
}
pending…

Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL.

0 Comments