form_field_validator library Null safety

Classes

DateValidator
EmailValidator
FieldValidator<T>
LengthRangeValidator
MatchValidator
a special match validator to check if the input equals another provided value;
MaxLengthValidator
MinLengthValidator
MultiValidator
PatternValidator
RangeValidator
RequiredValidator
TextFieldValidator

Typedefs

FormFieldValidator<T> = String? Function(T? value)
same function signature as FormTextField's validator;