Run results for: for vs foreach vs map vs for..of

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:141.0) Gecko/20100101 Firefox/141.0

Browser: Firefox 141

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

for

863K/s

some

366K/s

for..of

315K/s

foreach

300K/s

View exact numbers

Script Preparation code:

var array = new Array(1000).fill(1);

Tests:

for
const result = []; for (var i = 0; i < array.length; i++) { result.push(array[i] * 2); }
foreach
const result = []; array.forEach(function(i) { result.push(i * 2); });
some
const result = array.map(function(i) { return i * 2; });
for..of
const result = []; for (var i of array) { result.push(i * 2); }