Run results for: for vs foreach vs for-const vs for..of

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

1.2M/s

foreach

1.1M/s

for-const

670K/s

for

512K/s

View exact numbers

Script Preparation code:

var array = new Array(1000);

Tests:

for
let res=0 for (var i = 0; i < array.length; i++) { res += array[i] }
foreach
let res=0 array.forEach(function(i) { res += i });
for..of
let res=0 for (var i of array) { res += i }
for-const
let res=0 const leng = array.length for (var i = 0; i < leng; i++) { res += array[i] }