Run results for: for vs foreach for (cached length) vs for..of -- With assignment

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.111 YaBrowser/21.2.1.107 Yowser/2.5 Safari/537.36

Browser: Yandex Browser 21

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
for	43037.9 Ops/sec
foreach	84180.4 Ops/sec
for (cached length)	84712.8 Ops/sec
for..of	82988.3 Ops/sec

Script Preparation code:

var array = new Array(100);
for (var i = 0; i < array.length; i++) {
  array[i] = i * 10000
}

Tests:

for
for (let i = 0; i < array.length; i++) { array[i] + 1 }
foreach
array.forEach((i) => { array[i] + 1 });
for (cached length)
for (let i = 0, length = array.length; i < length; i++) { array[i] + 1 }
for..of
for (var i of array) { array[i] + 1 }

Run results for: for vs foreach for (cached length) vs for..of -- With assignment

Compare loop performance

for

foreach

for (cached length)

for..of