Validate a CVV number
| || ||String||The credit card number field. It is |
| || ||String||The error message|
creditCardField option is set, the validator will check if the CVV number is suitable with the credit card number of not.
In the details, the American Express card only accepts 4 digits CVV number, while other cards only accept 3 digits CVV number.
The following form also validates the CVV number based on the credit card number.
The following validators might be useful to you: