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Shawn Bolour
2,423 Pointswhy do we need to unwrap the value of the dictionary key?
In this challenge, why do we need to unwrap the value of the dictionary key?
import UIKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
let friends = Treehouse().friends
//Add your code below
let profileImageName = friends["profilePicture"!]
let profilePicture = friends.profileImageName
}
}
import UIKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
let friends = Treehouse().friends
//Add your code below
let profileImageName = friends["profilePicture"!]
let profilePicture = friends.profileImageName
}
}
struct Treehouse {
let friends = [
"firstName": "Susan",
"lastName": "Olson",
"profilePicture": "susan_profile.png"
]
}
1 Answer
Ezekiel Elin
3,839 PointsDisclaimer: I haven't done this project so this is all speculation
That's actually strange, because it should be a String, not a String?.
Perhaps the key isn't a String so it needs to be cast? I wonder if there's a way to check that.