Iterator
An iterator that presents the elements of the sequences traversed by a base iterator, concatenated using a given separator.
@frozen struct IteratorCitizens in Swift
Members
init<Separator>(base: Base.Iterator, separator: Separator) Creates an iterator that presents the elements of
basesequences concatenated usingseparator.
Citizens in Swift
where Base:Sequence, Base.Element:SequenceConformances
protocol IteratorProtocolA type that supplies the values of a sequence one at a time.
Members
func next() -> JoinedSequence<Base>.Iterator.Element? Advances to the next element and returns it, or
nilif no next element exists.typealias Element