A sequence containing the same elements as this sequence, but on which some operations, such as map
and filter
, are implemented lazily.
SDK
- Xcode 8.0+
Framework
- Swift Standard Library
A sequence containing the same elements as this sequence, but on which some operations, such as map
and filter
, are implemented lazily.
SDK
Framework
func compact Map<Element Of Result>((Self .Element) -> Element Of Result?) -> [Element Of Result]
Returns an array containing the non-nil
results of calling the given transformation with each element of this sequence.
func flat Map<Element Of Result>((Self .Element) -> Element Of Result?) -> [Element Of Result]
Returns an array containing the non-nil
results of calling the given transformation with each element of this sequence.
func flat Map<Segment Of Result>((Self .Element) -> Segment Of Result) -> [Segment Of Result .Element]
Returns an array containing the concatenated results of calling the given transformation with each element of this sequence.
func reduce<Result>(Result, (Result, Self .Element) -> Result) -> Result
Returns the result of combining the elements of the sequence using the given closure.