Collects the data of this stream in a Set.
The returned set is the same type as returned by new Set<T>()
. If another type of set is needed, either use forEach to add each element to the set, or use toList().then((list) => new SomeOtherSet.from(list))
to create the set.
Future<Set<T>> toSet() { Set<T> result = new Set<T>(); _Future<Set<T>> future = new _Future<Set<T>>(); this.listen( (T data) { result.add(data); }, onError: future._completeError, onDone: () { future._complete(result); }, cancelOnError: true); return future; }
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-async/Stream/toSet.html