pairwise method

Observable<(T, T)> pairwise()

Groups the items emitted by an Observable into Pair objects that represent the latest pair of items emitted by the source Observable.

For example [1, 2, 3, 4].toObservable().pairwise() yields (1, 2), (2, 3), and (3, 4).

Implementation

Observable<(T, T)> pairwise() => PairwiseObservable<T>(this);