Rxjava: 3.x: Add "exhaustMap" (flatMapFirst) operator

Created on 9 Feb 2020  路  3Comments  路  Source: ReactiveX/RxJava

Please add flatMapFirst (exhaustMap) operator, like this exhaustMap-rxjs, flatMapFirst in RxSwift.
Thanks!

3.x Feature-Request
Source
picture hoc081098
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All 3 comments

No. This is an uncommon operation to perform that can be emulated with existing operators:

source.onBackpressureDrop().flatMap(mapper, 1)

or

flatMapDrop for Observable.

akarnokd picture akarnokd on 9 Feb 2020
👎1 👍1

Thanks @akarnokd

hoc081098 picture hoc081098 on 19 Feb 2020

@akarnokd I could not agree less. ExhaustMap should be made standard. Coming from RxJs this is very inconvenient to use additional libraries for functionality that seems so common.

jnorkus picture jnorkus on 9 Nov 2020
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