Static factory designed to expose upgradeneeded
events to event handlers that are not necessarily instances of OpenDBRequest.
See EventStreamProvider for usage information.
static const EventStreamProvider<VersionChangeEvent> upgradeNeededEvent = const EventStreamProvider<VersionChangeEvent>('upgradeneeded')
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.5.0/dart-indexed_db/OpenDBRequest/upgradeNeededEvent-constant.html