Math.floor() vs bitwise double NOT

JavaScript performance comparison

Test case created by Miguel Mota

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  var n = [],
    i;
  for (i = 0; i < 10000; i += 1) {
    n.push(Math.random() * 100000);
  }

};
</script>

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
~~
var r, i;
for (i = 0; i < 10000; i += 1) {
  r = ~~n[i];
}
pending…
Math.floor()
var r, i;
for (i = 0; i < 10000; i += 1) {
  r = Math.floor(n[i]);
}
pending…

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