Run results for: For vs for of vs forEach

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36

Browser: Chrome 137

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

for of

20K/s

forEach

13K/s

reduce

7K/s

for loop

7K/s

View exact numbers

Script Preparation code:

var array = new Array(100000);

Tests:

for loop
let value; for (var i = 0; i < array.length; i++) { value = array[i]; }
forEach
let value; array.forEach(function(i) { value = i; });
for of
let value; for (var i of array) { value = i; }
reduce
const value = array.reduce((prev, current) => current, null)