Функция promiseToFuture<T>

Future<T> promiseToFuture<T>(

Объект jsPromise

)

Преобразует JavaScript Promise в Dart Future.

@JS()
external Promise<num> get threePromise; // Resolves to 3

void main() async {
  final Future<num> threeFuture = promiseToFuture(threePromise);

  final three = await threeFuture; // == 3
}

Реализация

external Future<T> promiseToFuture<T>(Object jsPromise);

© 2012 the Dart project authors
Licensed under the BSD 3-Clause "New" or "Revised" License.
https://api.dart.dev/stable/2.18.5/dart-js_util/promiseToFuture.html