const swap = (arr, idx1, idx2) => {
[arr[idx1], arr[idx2]] = [arr[idx2], arr[idx1]];
}
const bubbleSort = (array) => {
for(let i=0; i<array.length; i++) {
for(let j=0; j<=i; j++) {
if(array[j] > array[j+1]) swap(array, j, j+1);
}
}
return array;
}
bubbleSort([6,1,2,3,4,5]); // [1,2,3,4,5,6,]