# toSet method

Future<Set<T>> toSet ()

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.

## Implementation

    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;
    }