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doOnEmpty() Operator?
See original GitHub issueIs it possible we can add an Observable.doOnEmpty() operator? Sometimes when I’m debugging or want to handle an empty Observable I’d like to raise an error, display a message, or some other action to handle the emptiness…
Observable<String> source = ...
source.doOnEmpty(() -> System.out.println("No items were emitted!")).subscribe(System.out::println);
Issue Analytics
- State:
- Created 8 years ago
- Comments:11 (4 by maintainers)
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Oh nice, that’s clever. And it doesn’t even require any custom Operator implementation.
I can go ahead and close this then. I’ve started using Kotlin with extension functions so it’s marginalized the need personally for me to put this in a centralized library.
Android is supported by JetBrains, Kotlin is not officially supported by Android. It’s nice but not everyone is using Kotlin in their projects.