Async call to same object method in parallel

main.dart

// Dartpad: https://dartpad.dartlang.org/862be4c1fb446bbb36357a0615bba3b1

class AsyncClass {
  int value = 0;
  int numberOfCalls = 0;

  Future<String> getAsyncValue(Duration duration) async {
    final callerNumber = ++numberOfCalls;
    await Future.delayed(duration);
    value++;
    final message = 'The $callerNumber° caller finished in the $value° place (took $duration)';
    print(message);
    return message;
  }
}

void main() async {
  final asyncObject = AsyncClass();

  final results = await Future.wait([
    asyncObject.getAsyncValue(const Duration(milliseconds: 2000)),
    asyncObject.getAsyncValue(const Duration(milliseconds: 1000)),
    asyncObject.getAsyncValue(const Duration(milliseconds: 500)),
    asyncObject.getAsyncValue(const Duration(milliseconds: 5000)),
    asyncObject.getAsyncValue(const Duration(milliseconds: 200)),
    asyncObject.getAsyncValue(const Duration(milliseconds: 3000)),
  ]);

  print('============================================================');

  print(results.join('\n'));
}