let number = "1234 5678 9123 4567"
   
let v = CreditCardValidator()
   
if v.validateString(number) {
  // Card number is valid
} else {
  // Card number is invalid
}

let number = "1234 5678 9123 4567"
   
let v = CreditCardValidator()
if let type = v.typeFromString(number) {
	println(type.name) // Visa, Mastercard, Amex etc.
} else {
	// I Can't detect type of credit card
}