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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36

Browser: Chrome 142

Operating system: Windows

Device Platform: Desktop

Date tested: 9 months ago

reduce

5.2M/s

for

1.1M/s

for..of

892K/s

foreach

406K/s

View exact numbers

Script Preparation code:

var array = Array.from({ length: 200 }, () => {
  return Math.floor(Math.random() * (32000 - 0 + 1)) + 0;
})

Tests:

for
let result = 0; for (var i = 0; i < array.length; i++) { result += array[i]; } result;
foreach
let result = 0; array.forEach(function(i) { result += array[i]; }); result;
reduce
let result = array.reduce((accumulator, currentValue) => { return accumulator + currentValue; }, 0); result;
for..of
let result = 0; for (var i of array) { result += array[i]; } result;