Generic Instance Method

# mapValues(_:)

Returns a new dictionary containing the keys of this dictionary with the values transformed by the given closure.

## Parameters

`transform`

A closure that transforms a value. `transform` accepts each value of the dictionary as its parameter and returns a transformed value of the same or of a different type.

## Return Value

A dictionary containing the keys and transformed values of this dictionary.

## Discussion

Complexity: O(n), where n is the length of the dictionary.

### Transforming a Dictionary

`func reduce<Result>(Result, (Result, (key: Key, value: Value)) -> Result) -> Result`

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

`func reduce<Result>(into: Result, (inout Result, (key: Key, value: Value)) -> ()) -> Result`

Returns 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 compactMap<ElementOfResult>(((key: Key, value: Value)) -> ElementOfResult?) -> [ElementOfResult]`

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

`func compactMapValues<T>((Value) -> T?) -> Dictionary<Key, T>`

Returns a new dictionary containing only the key-value pairs that have non-`nil` values as the result of transformation by the given closure.

`func flatMap<SegmentOfResult>(((key: Key, value: Value)) -> SegmentOfResult) -> [SegmentOfResult.Element]`

Returns 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.