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iOS Swift 2.0 Enumerations and Optionals Introduction to Optionals Nil Values in Collections

Why does it keep giving me this error?

I have copied the syntax exactly from the video, why am I getting this error // swift_lint.swift:5:45: error: initializer for conditional binding must have Optional type, not '[String]' if let aMovie = movieDictionary["Spectre"], let aGroup = ["cast"], let anActor = ["Daniel Craig"] //

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

if let aMovie = movieDictionary["Spectre"], let aGroup = ["cast"], let anActor = ["Daniel Craig"]
{
var leadActor = anActor
}

1 Answer

Cindy Lea
PLUS
Cindy Lea
Courses Plus Student 6,485 Points

The if conditions need to be broken down differently:

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

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