Structure
DSCreditCardValidationRule
public struct DSCreditCardValidationRule: DSValidationRule A validation rule for requiring that a credit card number matches a legal format as much as possible.
Relationships
Conforms To
DSValidationRuleA validation framework for defining how text entered into a DSTextField can be validated and an appropriate error message provided if that validation fails. Multiple DSValidationRule objects can stack to perform multiple validations including the special DSRequiredTextValidationRule which is the only built-in rule validates empty fields.
Initializers
init(message:)
public init(message: String) Initializes the validation rule.
Parameters
| Name | Type | Description |
|---|---|---|
| message | String |
Error message to display if validator fails |
Properties
errorMessage
public private(set) var errorMessage: StringThe error message to be displayed when validation fails.
Methods
isValid(_:)
public func isValid(_ text: String) -> Bool Validation is handled by DSCreditCard rules which check for specific brands of credit card. Valid if empty.