VictorJoshuaC

// This program uses the test() method of the regular expression object
// to check if the card number matches the pattern of the respective card type.
// The program will check for a match against a regular expression for Visa, Mastercard,
// Verve and Discover card numbers in that order. 
// If the card number is valid for a specific card type the respective 
// message will be displayed and the checking will stop.