Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

iOS Enumerations and Optionals in Swift Introduction to Optionals Nil Values in Collections

Need to tie it up

I dont know how to assign the value i have got in this if let to the var above

optionals.swift
let movieDictionary = ["Spectre": ["cast": ["Daniel Craig", "Christoph Waltz", "Léa Seydoux", "Ralph Fiennes", "Monica Bellucci", "Naomie Harris"]]]

var leadActor: String = ""

// Enter code below
if let movie = movieDictionary["Spectre"], let actors = movie["cast"] {
    print(actors[0])
}

1 Answer

Matthew Long
Matthew Long
28,383 Points

You did the hard part! Now all you have to do us use subscript to access the actor at index position 0 and assign it to the leadActor variable.

let movieDictionary = ["Spectre": ["cast": ["Daniel Craig", "Christoph Waltz", "Léa Seydoux", "Ralph Fiennes", "Monica Bellucci", "Naomie Harris"]]]

var leadActor: String = ""

if let movie = movieDictionary["Spectre"], let actors = movie["cast"] {
  leadActor = actors[0]
}

A challenge here on Treehouse won't normally ask you to print something to the console. So be sure to reread the directions after you feel like you have the correct solution in Xcode.

haha, can't believe i miss that... i was looking to connect it above using the var instance. Thanks!!