Benchmark: Test for - MeasureThat.net

Script Preparation code:

var arr = [];
  for (var i = 0; i < 1000; i++) {
    arr[i] = i;
  }

  function someFn(ix) {
    return ix * 5;
  }

Tests:

for 3
var l = arr.length; var result=0; for (var i = 0; i < l; i++) { result += arr[i] * 5; }
for 4
var result=0; for (var i = 0; i < arr.length; i++) { result += arr[i] * 5; }
copy
var arr = []; for (var i = 0; i < 1000; i++) { arr[i] = i; } var result=0; for (var i = 0; i < arr.length; i++) { result += arr[i] * 5; }
with
var obj = {a:1,b:2}; with(obj){ var arr = []; for (var i = 0; i < 1000; i++) { arr[i] = i; } var result=0; for (var i = 0; i < arr.length; i++) { result += arr[i] * 5; } }

Rendered benchmark preparation results:

Previous results

Latest run results:

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Related benchmarks:

Test for (version: 0)