How to create array of unique object list in Swift

Question

How can we create unique object list in Swift language like NSSet & NSMutableSet in Objective-C.

Answer 1

I wrote a function to solve this problem.

public func removeDuplicates(aCollection: C) -> C {
    var container = C()

    for element in aCollection {
        if !contains(container, element) {
            container.append(element)
        }
    }

    return container
}

To use it, just pass an array which contains duplicate elements to this function. And then it will return a uniqueness-guaranteed array.

You also can pass a Dictionary, String or anything conforms to ExtensibleCollectionType protocol if you like.