Better Solution

JavaScript performance comparison

Revision 14 of this test case created by jon

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  var number = 25.5981956;
  function round(value, decimals) {
      decimals++;
      var n = Math.pow(10, decimals);
      return Math.round(value * n) / n;
  }
  function roundNoPow(value, decimals) {
      var n = 1;
      while (decimals > 0) {
          n *= 10;
          decimals--;
      }
      return Math.round(value * n) / n;
  }
  function truncNoPow(value, decimals) {
      var n = 1;
      while (decimals > 0) {
          n *= 10;
          decimals--;
      }
      return Math.floor(value * n) / n;
  }

};
</script>

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
toFixed
Number((number).toFixed(1));
pending…
Math.round
Math.round(number * 10) / 10
pending…
toFixed string
number.toFixed(1)
pending…
Better
round(number, 1);
pending…
roundNoPow
roundNoPow(number, 1);
pending…
truncNoPow
truncNoPow(number, 1);
pending…

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Revisions

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