Returns the concatenation of the elements in this collection of collections, inserting the given separator between each collection.
func joined(by separator: Element.Element) -> JoinedByCollection<Self, CollectionOfOne<Element.Element>> sSl10AlgorithmsSl7ElementRpzrlE6joined2byAA18JoinedByCollectionVyxs0G5OfOneVyAB_ABQZGGAJ_tF What are these?430UEwhere Self.Element:Collectionfor x in [[1, 2], [3, 4], [5, 6]].joined(by: 100) {
print(x)
}
// 1, 2, 100, 3, 4, 100, 5, 6import Swiftimport AlgorithmsSwift Algorithms is an open-source package of sequence and collection algorithms, along with their related types.
protocol Collection<Element> : SequenceA sequence whose elements can be traversed multiple times, nondestructively, and accessed by an indexed subscript.
associatedtype Elementassociatedtype Element where Self.Element == Self.Iterator.ElementA type representing the sequence’s elements.
struct JoinedByCollection<Base, Separator> where Base : Collection, Separator : Collection, Base.Element : Collection, Separator.Element == Base.Element.ElementA collection that presents the elements of a base collection of collections concatenated using a given separator.
@frozen struct CollectionOfOne<Element>A collection containing a single element.
func joined(by separator: Element.Element) -> JoinedBySequence<Self, CollectionOfOne<Element.Element>> Returns the concatenation of the elements in this sequence of sequences, inserting the given separator between each sequence.
func joined(by separator: (Element, Element) throws -> Element.Element) rethrows -> [Element.Element] Returns the concatenation of the elements in this sequence of sequences, inserting the separator produced by the closure between each sequence.
func joined(by separator: @escaping (Element, Element) -> Element.Element) -> JoinedByClosureCollection<Elements, CollectionOfOne<Element.Element>> Returns the concatenation of the elements in this collection of collections, inserting the separator produced by the closure between each sequence.
func joined<Separator>(by separator: @escaping (Element, Element) -> Separator) -> JoinedByClosureSequence<Elements, Separator> where Separator : Sequence, Separator.Element == Self.Element.Element Returns the concatenation of the elements in this sequence of sequences, inserting the separator produced by the closure between each sequence.
func joined<Separator>(by separator: Separator) -> JoinedByCollection<Self, Separator> where Separator : Collection, Separator.Element == Self.Element.Element Returns the concatenation of the elements in this collection of collections, inserting the given separator between each collection.