input: Write a function to sort an array in ascending order.
  assert sortArray([98, 45, 21, 99, 74, 44]) == [21, 44, 45, 74, 98, 99]
  assert sortArray([5, 2, 9, 1, 5, 6]) == [1, 2, 5, 5, 6, 9]
  assert sortArray([3, 0, -2, 4, -1, 5, -2]) == [-2, -2, -1, 0, 3, 4, 5]
output: def sortArray(arr):
      return sorted(arr)