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iOS Enumerations and Optionals in Swift Introduction to Optionals Initializing Optional Values

Posted by Tealium Solutions
Tealium Solutions
13,874 Points

my failable initializer cannot complile

Why can't my failable initializer compile for the Book struct?

optionals.swift 
struct Book {
    let title: String
    let author: String
    let price: String?
    let pubDate: String?
    init?(dictionary: [String:String]) {
      guard let title = dictionary["title"], let author = dictionary ["author"] else {
        return nil
      }
      self.title = title
      self.author = author
      self.price = dictionary["price"]
      self.pubDate = dictionary["pubDate"]
    }
}

1 Answer

Everton Carneiro
Everton Carneiro
15,994 Points
Everton Carneiro
Everton Carneiro
15,994 Points

Your code is right. You just need to rename dictionary to dict.

There's a note in the challenge: "Note: Give your initializer argument the name dict"

Tealium Solutions
Tealium Solutions
13,874 Points

Ah! I should read more carefully next time. Thanks!