Run results for: for of vs for vs foreach

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:87.0) Gecko/20100101 Firefox/87.0

Browser: Firefox 87

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Script Preparation code:

var arr = [1,2,3,4,5,6,7,8,9,0];

Tests:

Foreach
let result1 = ""; arr.forEach(item => result1 += item);
For
let result2 = ""; for (let i = 0; i < arr.length; i++) { result2 += arr[i]; }
For of
let result3 = ""; for (let item of arr) { result3 += item; }