Implementation

- dart

1. Result<T, E>
2. Option<T>

- unwrap
- unwrapOr
- unwrapOrElse

3. Try
4. TryAsync
5. TryAsyncAll

6. FromException(E)
7. scoped methods
- let
- panic

- flutter

1. ViewModel
2. snapshot.on for snapshot states change

Libraries

base

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