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

Posted by irem gürel
irem gürel
5,732 Points

please help me what is wrong?

struct Book { let title: String let author: String let price: String? let pubDate: String?

init?(dict: [String : String]){ guard self.title = dict["title"], self.author = dict["author"] else{return nil} self.price = dict["price"] self.pubDate = dict["pubDate"]

} }

optionals.swift 
struct Book {
    let title: String
    let author: String
    let price: String?
    let pubDate: String?

init?(dict: [String : String]){
 guard  self.title = dict["title"],  self.author = dict["author"] 
 else{return nil}
   self.price = dict["price"]
 self.pubDate = dict["pubDate"]

}
}

2 Answers

lvwdhydynw
lvwdhydynw
6,443 Points

Look at this link: http://stackoverflow.com/questions/38291808/instance-of-a-failable-init-method

I was also stucked at this challenge, however this link helped me to solve it out :)

irem gürel
irem gürel
5,732 Points
irem gürel
irem gürel
5,732 Points

Thank you, I have changed the "self.title" after the guard, assigned to a variable instead and it worked.