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

Corbin Cartwright
Corbin Cartwright
2,745 Points

help with optional unbinding

Am I suppose to use a function to retrieve the values as it states in the task?

optionals.swift
struct Book {
    let title: String
    let author: String
    let price: String?
    let pubDate: String?
    init?(dict: [String: String]) {
   return nil
}
}

func newBook(dict: [String: String]) -> Book? {
if let title = dict["title"],
let author = dict["author"] {
let price = dict["price"], let pubDate = dict["pubDate"])
} else {
return nil } }

1 Answer

I've solved this challenge thanks to this article: http://stackoverflow.com/questions/38291808/instance-of-a-failable-init-method. Hopefully you will find it helpful :)