Run results for: Iterator vs Index for loop (cached array length fixed)

Run details:

User agent: Mozilla/5.0 (Linux; Android 13; SM-M526BR) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 110

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
Iterator for loop	24181.1 Ops/sec
Index for loop	506.8 Ops/sec

Script Preparation code:

var arr = [];
for(let i = 0; i < 10000; i++) {
  arr.push(Math.random());
}
var arrLength = arr.length;

Tests:

Iterator for loop
let sum = 0; for(const num of arr) { sum += num; }
Index for loop
let sum = 0; for(let i = 0; i < arrLength; i++) { sum += arr[i]; }