Patterns example

readme.md

Patterns example

Created with <3 with dartpad.dev.

main.dart

class Drink {
  int ounces;
  
  Drink(this.ounces);
}

class Coffee extends Drink {
  final bool decaf;
  Coffee(int ounces, {this.decaf = false}) : super(ounces);
}

class SportsDrink extends Drink {
  final String? flavor;
  SportsDrink(int ounces, this.flavor) : super(ounces);
}

void main() {
  var drinks = <Drink>[
    Coffee(12, decaf: true),
    SportsDrink(16, null),
  ];
  
  for (var drink in drinks) {
    switch(drink) {
      case Coffee(:var decaf):
        print('coffee (decaf: $decaf)');
      case SportsDrink(:final flavor?):
        print('coffee (flavor: $flavor)');
      default:
        print("no match");
    }
  }
}