Generic Instance Method

flatMap(_:)

No overview available.

Declaration

func flatMap<ElementOfResult>(_ transform: (Elements.Element) throws -> ElementOfResult?) rethrows -> [ElementOfResult]

See Also

Transforming Entities

func map<T>((Elements.Element) -> T) -> [T]

Returns an array containing the results of mapping the given closure over the sequence’s elements.

func flatMap<SegmentOfResult>((Elements.Element) -> SegmentOfResult) -> [SegmentOfResult.Element]

Returns an array containing the concatenated results of calling the given transformation with each element of this sequence.

func compactMap<ElementOfResult>((Elements.Element) -> ElementOfResult?) -> [ElementOfResult]

Returns an array containing the non-nil results of calling the given transformation with each element of this sequence.

func reduce<Result>(Result, (Result, Elements.Element) -> Result) -> Result

Returns the result of combining the elements of the sequence using the given closure.

func reduce<Result>(into: Result, (inout Result, Elements.Element) -> ()) -> Result

Returns the result of combining the elements of the sequence using the given closure.

var lazy: LazySequence<Entity.ChildCollection.IndexingIterator<Elements>>

A sequence containing the same elements as this sequence, but on which some operations, such as map and filter, are implemented lazily.