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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:139.0) Gecko/20100101 Firefox/139.0

Browser: Firefox 139

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

for-const

466K/s

foreach

437K/s

for

364K/s

for..of

71K/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] }