CODEWITHSUNDEEP
swiftrx-swiftbehaviorsubject
emre doğmaz
emre doğmaz

Reputation: 75

RxSwift Remove an element BehaviorSubject

I have an BehaviorSubject array. i want to remove a photo from this array by id.

i tried; 

photosViewModel.favoritePhotos
            .observeOn(MainScheduler.instance)
            .map { photoList in
                photoList.filter { $0.id! != self.currentPhoto.id! } //remove currentPhoto
        }.bind(to: photosViewModel.favoritePhotos)
        .disposed(by: disposeBag)

Upvotes: 1

Views: 836

Answers (1)

Daniel T.
Daniel T.

Reputation: 33967

You can't "remove an element" from a BehaviorSubject. The closest you can come is to insert a new array into the subject (which will cause it to emit that new array.) Something like this:

favoritePhotos.onNext(try favoritePhotos.value().filter { $0.id != currentPhoto.id })

Upvotes: 2

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