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I think credit cards have an expiration date because it gives them a contractual âoutâ by saying a contract was only for a stated period and not an open-ended contract. The magnetic strip is a bunch of hogwash. The credit card companies do not want to send out millions of cards just because they might wear out.
Validating credit card expiration date. The question is that how to validate the expiration date which is often a required part in a payment form. Because the date validator asks for all the year, month and day, it isn't helpful in that case. This example introduces some approaches to solve this problem.