default_if_empty
default_if_empty
emits the values emitted by the source Observable or a specified default value if the source Observable is empty (completes without having emitted any next value).
[Operators](@ref what_are_operators)
default_if_empty
default_if_empty
emits the values emitted by the source Observable or a specified default value if the source Observable is empty (completes without having emitted any next value).
[Operators](@ref what_are_operators)