Dart stream exam

dart_stream_exam.dart

void main() {
  //Iterable
  Stream.fromIterable([1,2,3,4,5])
      .listen((int x) => print('iterable : ${x}'));

  //Periodic
  Stream.periodic(Duration(seconds: 1), (x) => x) 
      .take(5)
      .listen((x) => print('take : ${x}'));

  //Future
  Stream.fromFuture(getData()) 
    .listen((x) => print('from Future : ${x}'));
}

Future<String> getData() async {
  await Future.delayed(Duration(seconds: 5));  
  print("Fetched Data");
  return "--Future String--";
}