Error: "Cannot capture 'word' before it is declared" iOS swift - swift

Question

I'm writing code for a dictionary app in splitviewcontroller. I set a "Word" class with various entries, which are now not being read by the computer when I try to label them.
import UIKit
class DetailViewController: UIViewController {
class Word {
let name: String
let meaning: String
let numberOfTimesTapped: String
init(name: String, meaning: String, numberOfTimesTapped: String) {
self.name = name
self.meaning = meaning
self.numberOfTimesTapped = numberOfTimesTapped
}
}
#IBOutlet weak var WordLabel: UILabel!
#IBOutlet weak var DescriptionLabel: UILabel!
#IBOutlet weak var NumberOfTimesTappedLabel: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
func refreshUI() {
loadViewIfNeeded()
WordLabel.text = word?.name //[THIS IS WHERE I GET THE ERROR: "Cannot capture 'word' before it is declared" ALTHOUGH IT'S BEEN CLEARLY DECLARED BEFORE!!!]
DescriptionLabel.text = word?.meaning
NumberOfTimesTappedLabel.text = word?.numberOfTimesTapped
}
var word: Word? {
didSet {
refreshUI()
}
}

Answer 1

You'd see it much easier if you were using proper indentation, but you declare var word inside of refreshUI. You need to declare it outside of that so that the scope is accessible inside of refreshUI. Also you declare refreshUI inside of viewDidLoad, which is most likely not what you want. A fixed version of this code would be
var word: Word? {
didSet {
refreshUI()
}
}
override func viewDidLoad() {
super.viewDidLoad()
}
func refreshUI() {
loadViewIfNeeded()
WordLabel.text = word?.name
DescriptionLabel.text = word?.meaning
NumberOfTimesTappedLabel.text = word?.numberOfTimesTapped
}