Instance Method

prepend(_:)

Prefixes a Publisher’s output with the specified sequence.

Declaration

func prepend(_ elements: Upstream.Output...) -> Publishers.Concatenate<Publishers.Sequence<[Upstream.Output], Upstream.Failure>, Publishers.Multicast<Upstream, SubjectType>>

Parameters

elements

The elements to publish before this publisher’s elements.

Return Value

A publisher that prefixes the specified elements prior to this publisher’s elements.