is there a safer operator I can use, which would give me the latest value or null, sort of like `Beh...

# rx

[ursus]

is there a safer operator I can use, which would give me the latest value or null, sort of like BehaviorRelay.value?

[Zach Klippenstein (he/him) [MOD]]

You can amb your upstream with Observable.just(NO_VALUE) (where NO_VALUE is some sentinel value that makes sense with your types). If you put the sentinal last in the list of arguments to amb, you’ll get the behavior you want.

[ursus]

wouldnt the just always win?

[ursus]

oh as a last arg, I see, thanks!

[Zach Klippenstein (he/him) [MOD]]

Yep, if all the arguments emit synchronously then the winner depends on order in the list.

[ursus]

sweet