Function call cost

JavaScript performance comparison

Test case created by T.J. Crowder

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  function foo(a, b, c) {
   if (a === "a") { // a will never be "a"
    throw "Error";
   }
  }
  
  var array = [];
  (function() {
   var index = 100;
   while (index) {
    array.push(index);
    --index;
   }
  })();
  
  var index;

};
</script>

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
No call
for (index = 0; index < array.length; ++index) {
 if (array[index] === "a") { // will never happen
  throw "Error";
 }
}
pending…
With call
for (index = 0; index < array.length; ++index) {
 foo(array[index], index, array);
}
pending…

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