Run results for: forEach – native or for?

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36 Edg/109.0.1518.55

Browser: Chrome 109

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
native	6182298.5 Ops/sec
fastForEach	3322411.5 Ops/sec

Script Preparation code:

function fastforEach(subject, iterator) {
  const length = subject.length;
  for (let i = 0; i < length; i++) {
    iterator(subject[i], i, subject);
  }
};

var testingArray = [1,2,3];

Tests:

native
testingArray.forEach((v) => v+1);
fastForEach
fastforEach(testingArray, (v) => v+1);

Run results for: forEach – native or for?

native

fastForEach