1bubbleSort(Array) {
2    let len = Array.length;
3    for (let i = 0; i < len; i++) { //you can also use "for in", so you don't need the variable "len"
4        for (let j = 0; j < len; j++) {
5            if (Array[j] > Array[j + 1]) {
6                let tmp = Array[j];
7                Array[j] = Array[j + 1];
8                Array[j + 1] = tmp;
9            }
10        }
11    }
12    return Array;
13};

1function BubbleSort(arr) {
2      const sortedArray = Array.from(arr);
3      let swap;
4      do {
5        swap = false;
6        for (let i = 1; i < sortedArray.length; ++i) {
7          if (sortedArray[i - 1] > sortedArray[i]) {
8            [sortedArray[i], sortedArray[i - 1]] = [sortedArray[i - 1], sortedArray[i]];
9            swap = true;
10          }
11        }
12      } while (swap)
13      return sortedArray;
14    }
15
16    console.log(BubbleSort([7,99,1,88,34,2,90,7]));