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

Carlos Mendez
Carlos Mendez
2,646 Points

Why does it keep saying "Make sure you are retrieving the string at index 0 in the nested array"

Hello!

I am stuck here because it keeps saying to "Make sure you are retrieving the string at index 0 in the nested array" but isn't that what I am doing at the end by declaring that leadActor = mainActor[0]?? if the string that I need to pull from the nested array is in the first position isn't that at index position 0??

Thanks!!

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 movieTitle = movieDictionary["Specter"], let mainActor = movieTitle["cast"]{
    leadActor = mainActor[0]
}

2 Answers

You have a typo with "er" instead of "re"

movieDictionary["Specter"]

should be

movieDictionary["Spectre"]
Carlos Mendez
Carlos Mendez
2,646 Points

Of course I do... hahaha. Thank you!