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

my failable initializer cannot complile

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

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

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"

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