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Provider quiz

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What is a `FutureProvider` used for in the Provider package?

Questions in this quiz
  1. What is a `FutureProvider` used for in the Provider package?
  2. How does Provider's rebuild optimization work when a `ChangeNotifier`'s `notifyListeners()` is called -- does it rebuild the ENTIRE widget tree, or something more targeted?
  3. How does Provider typically handle disposal of a `ChangeNotifier` (or other disposable resource) when the provider is removed from the widget tree?
  4. What is Provider (the Flutter package)?
  5. What is `Selector<A, S>` used for in Provider, and how does it improve on plain `Consumer<A>` for optimizing rebuilds?
  6. How does `Provider.of<T>(context)` (or the shorthand `context.watch<T>()`) differ from `context.read<T>()`?
  7. What is a common reason a team building a Flutter app might choose Provider over the more structured BLoC pattern?
  8. What is a "read-only" provider (using plain `Provider` rather than `ChangeNotifierProvider`) typically used for?
  9. How does the Provider package relate to Flutter's official Riverpod package, given that both were created by the same author?
  10. What happens if a widget calls `context.watch<T>()` (or `Provider.of<T>(context)` with default `listen: true`) for a type `T` that has NOT actually been provided anywhere higher up in the widget tree?
  11. What is the purpose of the `Consumer` widget when using Provider?
  12. What is `Provider.value()` (as distinct from the standard `Provider(create: ...)`) used for, and why does its documentation warn against misusing it for object creation?
Gaps to close?
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