prime num check1

JavaScript performance comparison

Revision 2 of this test case created by darkajax

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var num1 = 1233421;
};
</script>

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Testing in unknown unknown
Test Ops/sec
1
function isPrime(n) {
  if (n < 2) {
    return false;
  } else {
    for (i = 2; i < n; i++) {
      if (n % i == 0) return false;
    }
  }
  return true;
}

isPrime(num1);
pending…
2
function isPrime(n) {
  if (n < 2) return false;
  for (i = 2; i < n; i++) {
    if (n % i == 0) return false;
  }
  return true;
}

isPrime(num1);
pending…
3
function isPrime(n) {
  for (i = 0; i < n; i++) {
    if (n % i == 0) return false;
  }
  return true;
}

isPrime(num1);
pending…

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