No overview available.
SDK
- Xcode 10.2–10.2Deprecated
Framework
- Swift Standard Library
Declaration
func flatMap<ElementOfResult>(_ transform: ((key: Key, value: Value)) throws -> ElementOfResult?) rethrows -> [ElementOfResult]
Generic Instance Methodflat
flat
See Also
Transforming a Dictionary
func mapReturns a new dictionary containing the keys of this dictionary with the values transformed by the given closure.
func reduce<Result>(Result, (Result, (key: Key, value: Value)) -> Result) -> ResultReturns the result of combining the elements of the sequence using the given closure.
func reduce<Result>(into: Result, (inout Result, (key: Key, value: Value)) -> ()) -> ResultReturns the result of combining the elements of the sequence using the given closure.
func map<T>(((key: Key, value: Value)) -> T) -> [T]Returns an array containing the results of mapping the given closure over the sequence’s elements.
func compactReturns an array containing the non-nil results of calling the given transformation with each element of this sequence.
func compactReturns a new dictionary containing only the key-value pairs that have non-nil values as the result of transformation by the given closure.
func flatReturns an array containing the concatenated results of calling the given transformation with each element of this sequence.
func sorted(by: ((key: Key, value: Value), (key: Key, value: Value)) -> Bool) -> [(key: Key, value: Value)]Returns the elements of the sequence, sorted using the given predicate as the comparison between elements.
func shuffled() -> [(key: Key, value: Value)]Returns the elements of the sequence, shuffled.
func shuffled<T>(using: inout T) -> [(key: Key, value: Value)]Returns the elements of the sequence, shuffled using the given generator as a source for randomness.