Dart pattern matching? https://medium.com/dartlang/dart-3-1-a-retrospective-on-functional-style-programming-in-dart-3-a1f4b3a7cdda https://medium.com/dartlang/

Dart pattern matching? https://medium.com/dartlang/dart-3-1-a-retrospective-on-functional-style-programming-in-dart-3-a1f4b3a7cdda https://medium.com/dartlang/dart-3-1-a-retrospective-on-func...