Math.trunc vs ~~

JavaScript performance comparison

Test case created by Gajus Kuizinas

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  var i = 1000000,
      pool = [];
  
  while (i--) {
      pool.push(Math.random());
  }

};
</script>

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Math.trunc
var i = 1000000;

while (--i) {
    pool[i] = Math.trunc(pool[i]);
}
pending…
~~
var i = 1000000;

while (--i) {
    pool[i] = ~~pool[i];
}
pending…

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