Run results for: Sum array: for vs forEach vs for..in vs for..of vs reduce

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36

Browser: Chrome 129

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 6 months ago

Script Preparation code:

var array = new Array(100);
for (let i = 0; i < 100; i++) {
  array[i] = i * i;
}

AخA
 
var array = new Array(100);for (let i = 0; i < 100; i++) {  array[i] = i * i;}

Tests:

let sum = 0
for (let i = 0; i < array.length; i++) {
  sum += array[i];
}

 
let sum = 0for (let i = 0; i < array.length; i++) {  sum += array[i];}

let sum = 0;
for (var i in array) {
  sum += array[i];
}

 
let sum = 0;for (var i in array) {  sum += array[i];}

let sum = 0;
for (var i of array) {
  sum += i;
}

 
let sum = 0;for (var i of array) {  sum += i;}