Discussion on: Clarifying RxJS Observables under 5 minutes

[Alfredo Salzillo]

One clarification, use of prototype operators of Observable is deprecated in version 5.x and not will be included in version 6.x of rxjs.
From version 6.x your example becomes

observable.pipe(
  map(value => value + 5),
  flatMap(value => Rx.Observable.of(9)),
  filter(value => value > 5),
)

[Gábor Soós]

Thanks for noting, will update the code block