An example of Publishers.Zip completing even if only one of the inner publishers completes.

zip_early_completion.swift

import Combine

let first = PassthroughSubject<Int, Never>()
let second = Just(2)

let cancellable = first
	.zip(second)
	.sink(receiveCompletion: { print($0) }, receiveValue: { print($0) })

first.send(1)

// Outputs:
// ```
// (1, 2)
// finished
// ```