This constraint is used to ensure that a credit card number passes the Luhn algorithm. It is useful as a first step to validating a credit card: before communicating with a payment gateway.
type: string default: Invalid card number.
The default message supplied when the value does not pass the Luhn check.
| Parameter | Description |
|---|---|
| {{ value }} | The current (invalid) value |
type: boolean default: true
Trim provided value.