zealous-pool-3944

readme.md

zealous-pool-3944

Created with <3 with dartpad.dev.

main.dart

void main() {
  final todos = signal([]);
  print(todos.isEmpty);
  
  final messages = signal({});
  print(messages.keys);
  
}

Signal<T> signal<T>(T value) => Signal(value);

class Signal<T> {
  const Signal(this.value);
  final T value;
}

extension ListSignalExtension<E> on Signal<List<E>> {
  bool get isEmpty => value.isEmpty;
}

extension MapSignalExtension<K, V> on Signal<Map<K, V>> {
  Iterable<K> get keys => value.keys;
}