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ALEKSANDR KONAKOV
Courses Plus Student 2,555 PointsTried the code in a playground of Xcode 7 - it's OK. Don't see any errors in a preview Window here.
struct Book {
let title: String
let author: String
let price: String?
let pubDate: String?
init?(arr: [String : String]) {
if arr["title"] == nil {return nil}
if arr["author"] == nil {return nil}
self.title = arr["title"]!
self.author = arr["author"]!
self.price = arr["price"]
self.pubDate = arr["pubDate"]
}
}
I'd very appreciate if you could tell me where I'm wrong.
1 Answer
Jens Hagfeldt
16,548 PointsHi ALEKSANDR
Yes you should use dict instead of arr if you want to pass the code challenge... Naming is crucial.
Also when checking your non-optional keys, instead of using if arr["title"] == nil {return nil} try in using the guard syntax that Pasan showed us in the previous video to check for that first instead. I've included the code for that down here below...
guard let bookTitle = dict["title"], bookAuthor = dict["author"] else {
return nil
}
I hope this helped a bit... Happy coding!
/ Jens
ALEKSANDR KONAKOV
Courses Plus Student 2,555 PointsALEKSANDR KONAKOV
Courses Plus Student 2,555 Pointsok. it should be dict instead of arr - I know :)