use of for of loop in javascript code example

Example 1: for of js

let list = [4, 5, 6];

for (let i in list) {
   console.log(i); // "0", "1", "2",
}

for (let i of list) {
   console.log(i); // "4", "5", "6"
}

Example 2: es6 for-of loop

for (let itme of list) {
  ...
}