Instance Methodswift 6.0.3Swift
next
Advances to the next element and returns it, or nil if no next element exists.
mutating func next() -> Base.Element? Once nil has been returned, all subsequent calls return nil.
Advances to the next element and returns it, or nil if no next element exists.
mutating func next() -> Base.Element? where Base:IteratorProtocolOnce nil has been returned, all subsequent calls return nil.
import Swift@frozen struct IteratorSequence<Base> where Base : IteratorProtocolA sequence built around an iterator of type Base.
associatedtype ElementThe type of element traversed by the iterator.
protocol IteratorProtocol<Element>A type that supplies the values of a sequence one at a time.
typealias Element = Base.Element