AlphaRule

public class AlphaRule : CharacterSetRule

AlphaRule is a subclass of CharacterSetRule. It is used to verify that a field has a valid list of alpha characters.

  • Initializes an AlphaRule object to verify that a field has valid set of alpha characters.

    Declaration

    Swift

    public init(message: String = "can have alpha characters only.")

    Return Value

    An initialized object, or nil if an object could not be created for some reason.