SWIFT

swift do catch

do {
    let sandwich = try makeMeSandwich(kitchen)
} catch let error {
    print(error.localizedDescription)
}

swift try catch

do {
    // Create audio player object
    audioPlayer = try AVAudioPlayer(contentsOf: soundURL)
            
    // Play the sound
    audioPlayer?.play()
}
catch {
    // Couldn't create audio player object, log the error
    print("Couldn't create the audio player for file (soundFilename)")
}

Swift Handling Errors Using do-catch Statement

do {
  try division(numerator: 10, denominator: 0)
  ...
}

catch DivisionError.dividedByZero {
  // statement
}

Swift Error Handling

var numerator = 10
var denominator = 0

// try to divide a number by 0
var result = numerator / denominator // error code