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Start your free trialJason Zheng
7,943 PointsWhy can't my code work?
I can't seem to get my code to work for this challenge. Help!
struct Tag {
let name: String
}
struct Post {
let title: String
let author: String
let tag: Tag
func description() -> String {
let newTitle = title.stringByReplacingOccurrencesOfString(" ", withString: "")
let result = "\(title) by \(author). Filed under \(tag)"
return result
}
}
let firstPost = Post(title: "iOS Development", author: "Apple", tag: Tag(name: "Swift"))
let postDescription = firstPost.description()
2 Answers
jcorum
71,830 Pointsstruct 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)" //need a String here, not a Tag
}
}
let tag = Tag(name: "swift") //create a tag with name = swift
let firstPost = Post(title: "iOS Development", author: "Apple", tag: tag)
let postDescription = firstPost.description()
jcorum
71,830 PointsGood eye! I see your point. It does say given a title "iOS Development", provide output "iOSDevelopment ..."
I admit I didn't notice, and wasn't forced to, as the editor accepted the space (which, of course, it shouldn't have).
Your code gets this error message:
swift_lint.swift:12:20: error: value of type 'String' has no member 'stringByReplacingOccurrencesOfString'
let newTitle = title.stringByReplacingOccurrencesOfString(" ", withString: "")
^~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The problem is that you have to import Foundation in order to use this String method.
If you add the import and change this line:
let result = "\(title) by \(author). Filed under \(tag)"
to
let result = "\(title) by \(author). Filed under \(tag.name)"
the editor will accept your code.
But I say you get big points for finding a bug in their editor code. It should not accept "iOS Development" in the output!
Jason Zheng
7,943 PointsThanks for your help, pal! :)
Jason Zheng
7,943 PointsJason Zheng
7,943 PointsThanks jcorum, your code seems to work but isn't the required output supposed to be the title with whitespaces removed? I included the stringByReplacingOccurrencesOfString method for that purpose but my code runs into compiler error: swift_lint.swift:12:20: error: value of type 'String' has no member 'stringByReplacingOccurrencesOfString' let newTitle = title.stringByReplacingOccurrencesOfString(" ", withString: "")