pop vs index during recursion

Benchmark created on


Preparation HTML

<script>
  var arr1 = [2, 3, 4, 5];
  var arr2 = [4, 3, 3, 1];
  var res = 0;
  
  function sumPop(array1, array2) {
    if (array1.length) return array1.pop() * array2.pop() + sumPop(array1, array2);
    return 0;
  }
  
  function sumI(array1, array2, i, len, undefined) {
    if (i === len) return 0; else return array1[i] * array2[i] + sumI(array1, array2, ++i, len);
  }
</script>

Test runner

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Testing in
TestOps/sec
pop
res = sumPop(arr1, arr2);
ready
i
res = sumI(arr1, arr2, 0, arr1.length);
ready

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