Random data transfer to button in Swift. (Array) - arrays

Question

import UIKit
class ViewController: UIViewController {
var buttonArray = [String] ()
#IBOutlet weak var button3: UIButton!
#IBOutlet weak var button2: UIButton!
#IBOutlet weak var button1: UIButton!
override func viewDidLoad() {
super.viewDidLoad()
buttonArray.append("answer1")
buttonArray.append("answer2")
buttonArray.append("answer3")
}
#IBAction func buttonClick(_ sender: UIButton) {
while true {
let randomArray = buttonArray[Int.random(in: 0...2)]
button1.titleLabel?.text = randomArray
break
}
}
}
I want to create a test. This test will have 3 answer choices and these answers will be randomly assigned to the buttons. I don't want an answer to be assigned to two choices. for this, I want to take the first assigned option into the array and remove it from the array after it is assigned. i don't understand how i can do this

Answer 1

You can remove an item at a random index. This item is returned from remove(at:
let randomElement = buttonArray.remove(at: Int.random(in: 0..<buttonArray.count)]
button1.titleLabel?.text = randomElement
Side note: Never hard-code array indices for a range.
To assign all three values randomly to the three buttons shuffle the array
let shuffledArray = buttonArray.shuffled()
button1.titleLabel?.text = shuffledArray[0]
button2.titleLabel?.text = shuffledArray[1]
button3.titleLabel?.text = shuffledArray[2]