Angela Yu Lesson 87: Create a Method to Contain the Sound Playing Functionality (Solution)

PlaySound.swift

@IBAction func notePressed(_ sender: UIButton) {
    playSound("note" + String(sender.tag))
}
 
func playSound(_ fileName: String) {
    let soundURL = Bundle.main.url(forResource: fileName, withExtension: "wav")
    do {
        try audioPlayer = AVAudioPlayer(contentsOf: soundURL!)
    }
    catch {
    }
    audioPlayer.play()
}