buffer method

Stream<List<T>> buffer (
  1. Stream window
)

Creates a Stream where each item is a List containing the items from the source sequence.

This List is emitted every time window emits an event.

Example

Stream.periodic(Duration(milliseconds: 100), (i) => i)
  .buffer(Stream.periodic(Duration(milliseconds: 160), (i) => i))
  .listen(print); // prints [0, 1] [2, 3] [4, 5] ...

Implementation

Stream<List<T>> buffer(Stream window) =>
    transform(BufferStreamTransformer((_) => window));