lastNameValidation method

String? lastNameValidation(
  1. String name
)

Implementation

String? lastNameValidation(String name) {
  if (name.isEmpty) {
    return 'Last name can\'t be empty';
  }
  if (name.length < 3) {
    return 'Last name can\'t be shorter than 3 letters';
  }
  return null;
}