Programming in Swift: Fundamentals

Oct 19 2021 · Swift 5.5, iOS 15, Xcode 13

Part 4: More Collections

31. Working with Sets

Episode complete

Play next episode

About this episode

Leave a rating/review

See forum comments
Cinema mode Mark complete Download course materials
Previous episode: 30. Challenge: Dictionaries Next episode: 32. Challenge: Sets

Get immediate access to this and 4,000+ other videos and books.

Take your career further with a Kodeco Personal Plan. With unlimited access to over 40+ books and 4,000+ professional videos in a single subscription, it's simply the best investment you can make in your development career.

Learn more Already a subscriber? Sign in.

Notes: 31. Working with Sets

Update Notes: The student materials have been reviewed and are updated as of October 2021.

Heads up... You've reached locked video content where the transcript will be shown as obfuscated text.

In this exercise, you’ll learn about a third and final collection type in Swift: sets.

var someSet: Set<Int>
//let someArray: Array<Int>
//let someDictionary: Dictionary<String, Int>
var someSet: Set<Int> = [1, 2, 3, 1]
let removedElement = someSet.remove(3)
let nilElement = someSet.remove(42)
let anotherSet: Set<Int> = [5, 7, 13]
let intersection = someSet.intersection(anotherSet)
let difference = someSet.symmetricDifference(anotherSet)
let union = someSet.union(anotherSet)