Asynchronous programming in dart

dart_async.dart

void main() => myTasks();

myTasks() {
  printMessage();
  acknowledgeFileUpload();
  thankyouMessage();
}

void printMessage() {
  print("Task Started");
}

Future<int> uploadFileToTheServer() async {
  print("Uploading file...");
  Duration d = new Duration(seconds: 10);
  await Future.delayed(d);
  return 1;
}

void acknowledgeFileUpload() {
  Future<int> result = uploadFileToTheServer();
  String res = result.toString();
  if (res.compareTo("1") == 1) {
    print("success");
  } else {
    print("failed");
  }
}

void thankyouMessage() {
  print("Thanks for using this platform");
}