RxJS 5 timeout
RxJS 5 forkJoin
RxJS 5 retryWhen
RxJS 5 let
RxJS 5 exhaustMap
RxJS 5 concatMap
RxJS 5 scan
RxJS 5 pairwise
RxJS 5 switchMap
RxJS 5 smart timer
RxJS 5 combineLatest