1for (let i = 0; i < arr.length; i++) {

2 for (let j = 0; j < arr.length - i - 1; j++) {

3 if (arr[j] > arr[j + 1]) {

4 [arr[j], arr[j + 1]] = [arr[j + 1], arr[j]]

5 }

6 }

7}