var array = ["O","R","D", "E", "R"];
print ("we start with -->", array);
array.reverse();
print("my_array is now reversed -->", array);
// reversing a reversed array gets back the original
array.reverse();
print ("The array is back to its original order -->", array);

let copy = Array(array.reversed());

print("The reversed new_array -->", copy);
print("The original array -->  -->", array);