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

Antony Gabagul
Antony Gabagul
9,351 Points
Posted by Antony Gabagul
Antony Gabagul
9,351 Points

Getting variable outside of if-statement

How to get that constant named "b" out of the if-statement and assign it to leadActor

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

var leadActor: String = ""

// Enter code below

if let a = movieDictionary["Spectre"], let b = actor["cast"]{
    print(b[0]) //This gets me "Daniel Craig"
}else {print("No such directory")}

1 Answer

jcorum
jcorum
71,830 Points

Close, but they don't want you to print it, and they wanted nested optional binding if let statements:

if let a = movieDictionary["Spectre"] {
  if let b = a["cast"] {
    leadActor = b[0] 
  }else {
    print("No such directory")
  }
}