Structure

MLDataValue.DictionaryType

A dictionary of named data values.

Declaration

struct MLDataValue.DictionaryType

Topics

Instance Properties

var first: (key: MLDataValue, value: MLDataValue)?

The first element of the collection.

var indices: DefaultIndices<MLDataValue.DictionaryType>

The indices that are valid for subscripting the collection, in ascending order.

var lazy: LazySequence<MLDataValue.DictionaryType>

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

var underestimatedCount: Int

A value less than or equal to the number of elements in the collection.

Instance Methods

func allSatisfy(((key: MLDataValue, value: MLDataValue)) -> Bool) -> Bool

Returns a Boolean value indicating whether every element of a sequence satisfies a given predicate.

func compactMap<ElementOfResult>(((key: MLDataValue, value: MLDataValue)) -> ElementOfResult?) -> [ElementOfResult]

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

func contains(where: ((key: MLDataValue, value: MLDataValue)) -> Bool) -> Bool

Returns a Boolean value indicating whether the sequence contains an element that satisfies the given predicate.

func drop(while: ((key: MLDataValue, value: MLDataValue)) -> Bool) -> Slice<MLDataValue.DictionaryType>

Returns a subsequence by skipping elements while predicate returns true and returning the remaining elements.

func dropFirst(Int) -> Slice<MLDataValue.DictionaryType>

Returns a subsequence containing all but the given number of initial elements.

func dropLast(Int) -> Slice<MLDataValue.DictionaryType>

Returns a subsequence containing all but the specified number of final elements.

func elementsEqual<OtherSequence>(OtherSequence, by: ((key: MLDataValue, value: MLDataValue), OtherSequence.Element) -> Bool) -> Bool

Returns a Boolean value indicating whether this sequence and another sequence contain equivalent elements in the same order, using the given predicate as the equivalence test.

func enumerated() -> EnumeratedSequence<MLDataValue.DictionaryType>

Returns a sequence of pairs (n, x), where n represents a consecutive integer starting at zero and x represents an element of the sequence.

func filter(((key: MLDataValue, value: MLDataValue)) -> Bool) -> [(key: MLDataValue, value: MLDataValue)]

Returns an array containing, in order, the elements of the sequence that satisfy the given predicate.

func first(where: ((key: MLDataValue, value: MLDataValue)) -> Bool) -> (key: MLDataValue, value: MLDataValue)?

Returns the first element of the sequence that satisfies the given predicate.

func firstIndex(where: ((key: MLDataValue, value: MLDataValue)) -> Bool) -> MLDataValue.DictionaryType.Index?

Returns the first index in which an element of the collection satisfies the given predicate.

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

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

func forEach(((key: MLDataValue, value: MLDataValue)) -> Void)

Calls the given closure on each element in the sequence in the same order as a for-in loop.

func formIndex(inout MLDataValue.DictionaryType.Index, offsetBy: Int)

Offsets the given index by the specified distance.

func formIndex(inout MLDataValue.DictionaryType.Index, offsetBy: Int, limitedBy: MLDataValue.DictionaryType.Index) -> Bool

Offsets the given index by the specified distance, or so that it equals the given limiting index.

func formIndex(after: inout MLDataValue.DictionaryType.Index)

Replaces the given index with its successor.

func index(MLDataValue.DictionaryType.Index, offsetBy: Int) -> MLDataValue.DictionaryType.Index

Returns an index that is the specified distance from the given index.

func index(MLDataValue.DictionaryType.Index, offsetBy: Int, limitedBy: MLDataValue.DictionaryType.Index) -> MLDataValue.DictionaryType.Index?

Returns an index that is the specified distance from the given index, unless that distance is beyond a given limiting index.

func lexicographicallyPrecedes<OtherSequence>(OtherSequence, by: ((key: MLDataValue, value: MLDataValue), (key: MLDataValue, value: MLDataValue)) -> Bool) -> Bool

Returns a Boolean value indicating whether the sequence precedes another sequence in a lexicographical (dictionary) ordering, using the given predicate to compare elements.

func makeIterator() -> IndexingIterator<MLDataValue.DictionaryType>

Returns an iterator over the elements of the collection.

func map<T>(((key: MLDataValue, value: MLDataValue)) -> T) -> [T]

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

func max(by: ((key: MLDataValue, value: MLDataValue), (key: MLDataValue, value: MLDataValue)) -> Bool) -> (key: MLDataValue, value: MLDataValue)?

Returns the maximum element in the sequence, using the given predicate as the comparison between elements.

func min(by: ((key: MLDataValue, value: MLDataValue), (key: MLDataValue, value: MLDataValue)) -> Bool) -> (key: MLDataValue, value: MLDataValue)?

Returns the minimum element in the sequence, using the given predicate as the comparison between elements.

func prefix(Int) -> Slice<MLDataValue.DictionaryType>

Returns a subsequence, up to the specified maximum length, containing the initial elements of the collection.

func prefix(through: MLDataValue.DictionaryType.Index) -> Slice<MLDataValue.DictionaryType>

Returns a subsequence from the start of the collection through the specified position.

func prefix(upTo: MLDataValue.DictionaryType.Index) -> Slice<MLDataValue.DictionaryType>

Returns a subsequence from the start of the collection up to, but not including, the specified position.

func prefix(while: ((key: MLDataValue, value: MLDataValue)) -> Bool) -> Slice<MLDataValue.DictionaryType>

Returns a subsequence containing the initial elements until predicate returns false and skipping the remaining elements.

func randomElement() -> (key: MLDataValue, value: MLDataValue)?

Returns a random element of the collection.

func randomElement<T>(using: inout T) -> (key: MLDataValue, value: MLDataValue)?

Returns a random element of the collection, using the given generator as a source for randomness.

func reduce<Result>(Result, (Result, (key: MLDataValue, value: MLDataValue)) -> Result) -> Result

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

func reduce<Result>(into: Result, (inout Result, (key: MLDataValue, value: MLDataValue)) -> ()) -> Result

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

func reversed() -> [(key: MLDataValue, value: MLDataValue)]

Returns an array containing the elements of this sequence in reverse order.

func shuffled() -> [(key: MLDataValue, value: MLDataValue)]

Returns the elements of the sequence, shuffled.

func shuffled<T>(using: inout T) -> [(key: MLDataValue, value: MLDataValue)]

Returns the elements of the sequence, shuffled using the given generator as a source for randomness.

func sorted(by: ((key: MLDataValue, value: MLDataValue), (key: MLDataValue, value: MLDataValue)) -> Bool) -> [(key: MLDataValue, value: MLDataValue)]

Returns the elements of the sequence, sorted using the given predicate as the comparison between elements.

func split(maxSplits: Int, omittingEmptySubsequences: Bool, whereSeparator: ((key: MLDataValue, value: MLDataValue)) -> Bool) -> [Slice<MLDataValue.DictionaryType>]

Returns the longest possible subsequences of the collection, in order, that don’t contain elements satisfying the given predicate.

func starts<PossiblePrefix>(with: PossiblePrefix, by: ((key: MLDataValue, value: MLDataValue), PossiblePrefix.Element) -> Bool) -> Bool

Returns a Boolean value indicating whether the initial elements of the sequence are equivalent to the elements in another sequence, using the given predicate as the equivalence test.

func suffix(Int) -> Slice<MLDataValue.DictionaryType>

Returns a subsequence, up to the given maximum length, containing the final elements of the collection.

func suffix(from: MLDataValue.DictionaryType.Index) -> Slice<MLDataValue.DictionaryType>

Returns a subsequence from the specified position to the end of the collection.

See Also

Accessing Dictionary Values