diffSets function

List<List<String>> diffSets(List<String> initial, List<String> updated)

Implementation

List<List<String>> diffSets(
    final List<String> initial, final List<String> updated) {
  return [
    updated.where((key) => !initial.contains(key)).toList(),
    initial.where((key) => !updated.contains(key)).toList()
  ];
}