findContactsWithLastName method

Set<int> findContactsWithLastName(
  1. String queryString
)

Implementation

Set<int> findContactsWithLastName(String queryString) {
  final herdersMatch =
      all.where((c) => c.lastName.clean.contains(queryString.clean)).toList();
  final herdersMatchIds = Set.of(<int>{});
  for (final herder in herdersMatch) {
    herdersMatchIds.add(herder.id);
  }
  return herdersMatchIds;
}