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iOS Build a Simple iPhone App with Swift 2.0 Getting Started with iOS Development Swift Recap Part 1

Wai Hoong Lew
Wai Hoong Lew
1,797 Points

instance method

i already done the tast but the compiler always show the error "make sure the implementation of description matches the direction.Hint: Use string interpolation"

structs.swift
struct Tag {
    let name: String
}

struct Post {
let title: String
let author: String
let tag: Tag

func description() -> String{

return "\(title) by \(author). Filed under \(tag)"

}

}

let firstPost = Post(title: "iOS Development",author: "Apple",tag: Tag(name: "swift"))
let postDescription = firstPost.description()

2 Answers

Mohamed Moukhtar
PLUS
Mohamed Moukhtar
Courses Plus Student 6,151 Points

You did the following mistakes: 1- There is a space between the two words in the Post's title stored property value, the value should be "IOSDevelopment" not "IOS Development" 2- you forgot to access the "name" property of the Tag struct instance in the description method, your code should be tag.name not tag

//The working code should be as following:

struct Tag { let name: String }

struct Post { let title: String let author: String let tag: Tag

func description() -> String{

    return "\(title) by \(author). Filed under \(tag.name)"

}

}

let firstPost = Post(title: "iOSDevelopment",author: "Apple",tag: Tag(name: "swift")) let postDescription = firstPost.description()