import 'dart:async';

​

void main() {

  Stream<int> myFunction() async* {

    yield* Stream.periodic(

        Duration(seconds: 1), (computationCount) => computationCount++);

  }

​

  myFunction().listen((event) {

    print(event);

  });

}

​

//output

0

1

2

3

4

5

.

.

.

.

.

.