Stream<T>.value constructor Null safety
- @Since("2.5")
- T value
Creates a stream which emits a single data event before completing.
This stream emits a single data event of value
and then completes with a done event.
Example:
Future<void> printThings(Stream<String> data) async {
await for (var x in data) {
print(x);
}
}
printThings(Stream<String>.value("ok")); // prints "ok".
The returned stream is effectively equivalent to one created by
(() async* { yield value; } ()) or Future<T>.value(value).asStream().
Implementation
@Since("2.5")
factory Stream.value(T value) =>
(_AsyncStreamController<T>(null, null, null, null)
.._add(value)
.._closeUnchecked())
.stream;