import Cocoa

/* Create an array of 5 intergers with duplicate values */
let array = [1, 2, 3, 4, 5, 1, 2, 3, 4, 5]
print(array)

/* remove duplicate values from the array */
let set = Set(array)
print(set)

Output

[1, 2, 3, 4, 5, 1, 2, 3, 4, 5]

[4, 1, 5, 2, 3]