Dart async

Async* dart

What does async * mean in DART?

You add the async* keyword to make a function that returns 
a bunch of future values one at a time which are returned 
using keyword yield (which is used to return a value without
terminating the function execution)!

The results are wrapped in a Stream. An Example could be:

Stream<int> myStream() async* {
  //wait for Duration of 3 Secs and yield a value,
  for (int i = 0; i < 6; i++) {
    await Future.delayed(Duration(seconds: 3));
    yield i;
  }
}

void main() {
  Stream<int> instanceStream = myStream();

  instanceStream.listen((data) {
    print(data);
  });
}

Source: stackoverflow.com

Similar codes

3 votes334 views1 answer
Dart timestamp
Dart
15 votes284 views6 answers
Flutter border radius
Dart
0 vote321 views1 answer
Elevated Button Theme background color in flutter
Dart
3 votes356 views4 answers
Print dart
Dart
0 vote277 views1 answer
Flutter listview inside sliverlist
Dart
0 vote327 views3 answers
Write and read to file in flutter
Dart
0 vote371 views1 answer
Flutter elif
Dart
1 vote392 views2 answers
Flutter force soft keyboard on widget
Dart
2 votes339 views1 answer
Flutter animatedalign
Dart
75 votes494 views5 answers
Python read json from url
Dart