updateInt method

@experimental Future<void> updateInt(String key, Transformer<int?> transformer)

Read–modify–write.

Read int value by key, then transforming the value by transformer, and finally save transformed value to persistent storage.

See also:

• update for more details.

Implementation

@experimental
Future<void> updateInt(String key, Transformer<int?> transformer) =>
    update<int>(
      key: key,
      decoder: _cast,
      transformer: transformer,
      encoder: _identity,
    );