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arun mathew
825 Pointsinit?(), failable init method with dictionary as the parameter and struct has 4 members to initialise as well.
init?(), failable init method with dictionary as the parameter and struct has 4 members to initialise as well. please see my code and please instruct me how to solve this challange. In playground I was able to retrieve the value of all the stored members, but sure this is not the way things has to be done
struct Book {
let title: String
let author: String
let price: String?
let pubDate: String?
// init? (dict : [title: String : author: String, price : String? : pubDate : String? ])
init? (dict : [ String : String ] = ["title": "kamp", "author": "arun", "price" :"thousand", "pubDate" : "tomorrow"])
{
self.title = dict["title"]!
self.author = dict["author"]!
self.price = dict["price"]
self.pubDate = dict["pubDate"]
}
}
let boook = Book.init()?.title
1 Answer
Cindy Lea
Courses Plus Student 6,497 PointsYou have your init & self statements wrong:
struct Book {
let title: String
let author: String
let price: String?
let pubDate: String?
init?(dict: [String: String]){
guard let title = dict["title"], author = dict["author"] else {
return nil
}
self.title = title
self.author = author
self.price = dict["price"]
self.pubDate = dict["pubDate"]
}
}