Метод update

Future update(

dynamic value

)

Реализация

Future update(value) {
  try {
    return _completeRequest(_update(value));
  } catch (e, stacktrace) {
    return new Future.error(e, stacktrace);
  }
}

© 2012 the Dart project authors
Licensed under the BSD 3-Clause "New" or "Revised" License.
https://api.dart.dev/stable/2.18.5/dart-indexed_db/Cursor/update.html