dart_either 2.0.0

Either monad for Dart language and Flutter framework. Type-safe error handling, railway oriented programming. Supports Monad comprehensions, async map, async flatMap.

2.0.0 - Sep 01, 2024

• Require Dart 3.0.0 or higher >=3.0.0 <4.0.0.

• Make Either a sealed class, EitherEffect a sealed class, and ControlError a final class. Now you can use exhaustive switch expressions on Either instances.

  final Either<String, int> either = Either.right(10);
    
  // Use the `when` method to handle
  either.when(
    ifLeft: (l) => print('Left: $l'),
    ifRight: (r) => print('Right: $r'),
  ); // Prints Right: Either.Right(10)
    
  // Or use Dart 3.0 switch expression syntax 🤘
  print(
    switch (either) {
      Left() => 'Left: $either',
      Right() => 'Right: $either',
    },
  ); // Prints Right: Either.Right(10)
  

1.0.0 - Aug 23, 2022

• This is our first stable release.

0.0.1 - Apr 27, 2021

• Initial version, created by Stagehand