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Start your free trialPatrick Stäuble
1,483 PointsTwo different ways to answer this question. Not sure which is correct.
Hi Guys,
there are two way to answer this question, I am not sure which one to use, and why they are both correct.
Version 1:
/code
struct Tag { let name: String } struct Post { let title: String let author: String let tag: Tag
init(title: String, author: String, tag: String){ self.title=title self.author=author self.tag=Tag(tag)
}
let firstPost = Post(title: "IOSDevelopment", author: "Apple", tag: "swift")
Version 2:
struct Tag { let name: String }
struct Post { let title: String let author: String let tag: Tag } let firstPost = Post(title: "IOSDevelopment", author: "Apple", tag: Tag(name:"swift"))
Fundamentally I think what I do not understand is when should I be initializing and when not? Why in this case is it ok to not use init()? Do I need to specifically initialize if a class is not a subclass?
1 Answer
garyguermantokman
21,097 PointsHey,
Go with the second way. The init() function should be used with structs when you want to initialize the values differently than what the default initializer gives you. This example is basic and you can use the default init(). Docs on Init
struct Tag {
let name: String
}
struct Post {
let title: String
let author: String
var tag: Tag
func description() -> String {
return "\(title) by \(author). Filed under \(tag.name)"
}
}
let firstPost = Post(title: "Hello", author: "Gary", tag: Tag(name: "Treehouse"))
let postDescription = firstPost.description()