Removing duplicate elements from an array in Swift

Question

I might have an array that looks like the following:

[1, 4, 2, 2, 6, 24, 15, 2, 60, 15, 6]

Or, reall

Answer 1

1. First add all the elements of an array to NSOrderedSet.
2. This will remove all the duplicates in your array.
3. Again convert this orderedset to an array.

Done....

Example

let array = [1,1,1,1,2,2,2,2,4,6,8]

let orderedSet : NSOrderedSet = NSOrderedSet(array: array)

let arrayWithoutDuplicates : NSArray = orderedSet.array as NSArray

output of arrayWithoutDuplicates - [1,2,4,6,8]