Run results for: for vs for of vs for in

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.5005.136 Safari/537.36

Browser: Chrome 102

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Tests:

const arr = Array(10000).fill(0);
const l = arr.length;
for (let i = 0; i < l; i++) {
  arr[i];
}

AخA
 
const arr = Array(10000).fill(0);const l = arr.length;for (let i = 0; i < l; i++) {  arr[i];}

const arr = Array(10000).fill(0);
for (let x of arr) {
  x;
}

 
const arr = Array(10000).fill(0);for (let x of arr) {  x;}

const arr = Array(10000).fill(0);
for (let i in arr) {
  arr[i];
}

 
const arr = Array(10000).fill(0);for (let i in arr) {  arr[i];}