validator method

  1. @override
EmailValidationError? validator(
  1. String value
)
override

A function that must return a validation error if the provided value is invalid and null otherwise.

Implementation

@override
EmailValidationError? validator(String value) {
  if (value.isEmpty) return EmailValidationError.empty;
  return _emailRegex.hasMatch(value) ? null : EmailValidationError.invalid;
}