Open ClassFoundation5.9.0
NSDictionary
class NSDictionarySuperclasses
class NSObjectThe root class of most Foundation class hierarchies.
Citizens in Foundation
Conformances
protocol CustomDebugStringConvertibleA type with a customized textual representation suitable for debugging purposes.
protocol CustomReflectableA type that explicitly supplies its own mirror.
protocol CustomStringConvertibleA type with a customized textual representation.
protocol EquatableA type that can be compared for value equality.
protocol ExpressibleByDictionaryLiteralA type that can be initialized using a dictionary literal.
protocol HashableA type that can be hashed into a
Hasherto produce an integer hash value.protocol NSCodingThe
NSCodingprotocol declares the two methods that a class must implement so that instances of that class can be encoded and decoded. This capability provides the basis for archiving (where objects and other structures are stored on disk) and distribution (where objects are copied to different address spaces).protocol NSCopyingThe
NSCopyingprotocol declares a method for providing functional copies of an object. The exact meaning of “copy” can vary from class to class, but a copy must be a functionally independent object with values identical to the original at the time the copy was made.protocol NSMutableCopyingThe
NSMutableCopyingprotocol declares a method for providing mutable copies of an object. Only classes that define an “immutable vs. mutable” distinction should adopt this protocol. Classes that don’t define such a distinction should adoptNSCopyinginstead.protocol NSObjectProtocolThe
NSObjectProtocolgroups methods that are fundamental to all Foundation objects.protocol NSSecureCodingConforming to the
NSSecureCodingprotocol indicates that an object handles encoding and decoding instances of itself in a manner that is robust against object substitution attacks.protocol SequenceA type that provides sequential, iterated access to its elements.
Members
convenience init() convenience init?(coder: NSCoder) convenience init(dictionary: [AnyHashable : Any]) convenience init(dictionary: [AnyHashable : Any], copyItems: Bool) convenience init(dictionaryLiteral: (Any, Any)...) convenience init(object: Any, forKey: NSCopying) convenience init(objects: [Any], forKeys: [NSObject]) init(objects: UnsafePointer<AnyObject>!, forKeys: UnsafePointer<NSObject>!, count: Int) static var supportsSecureCoding: Boolclass func sharedKeySet(forKeys: [NSCopying]) -> Any var allKeys: [Any]var allValues: [Any]var count: Intvar customMirror: Mirrorvar description: StringA string that represents the contents of the dictionary, formatted as a property list (read-only)
var descriptionInStringsFileFormat: Stringvar hash: Intsubscript(Any) -> Any? func allKeys(for: Any) -> [Any] func copy() -> Any func copy(with: NSZone?) -> Any func description(withLocale: Locale?) -> String Returns a string object that represents the contents of the dictionary, formatted as a property list.
func description(withLocale: Locale?, indent: Int) -> String Returns a string object that represents the contents of the dictionary, formatted as a property list.
func encode(with: NSCoder) func enumerateKeysAndObjects((Any, Any, UnsafeMutablePointer<ObjCBool>) -> Void) func enumerateKeysAndObjects(options: NSEnumerationOptions, using: (Any, Any, UnsafeMutablePointer<ObjCBool>) -> Void) func getObjects(inout [Any], andKeys: inout [Any], count: Int) Alternative pseudo funnel method for fastpath fetches from dictionaries
func isEqual(Any?) -> Bool func isEqual(to: [AnyHashable : Any]) -> Bool func keyEnumerator() -> NSEnumerator func keysOfEntries(options: NSEnumerationOptions, passingTest: (Any, Any, UnsafeMutablePointer<ObjCBool>) -> Bool) -> Set<AnyHashable> func keysOfEntries(passingTest: (Any, Any, UnsafeMutablePointer<ObjCBool>) -> Bool) -> Set<AnyHashable> func keysSortedByValue(comparator: (Any, Any) -> ComparisonResult) -> [Any] func keysSortedByValue(options: NSSortOptions, usingComparator: (Any, Any) -> ComparisonResult) -> [Any] func makeIterator() -> NSDictionary.Iterator func mutableCopy() -> Any func mutableCopy(with: NSZone?) -> Any func object(forKey: Any) -> Any? func objectEnumerator() -> NSEnumerator func objects(forKeys: [Any], notFoundMarker: Any) -> [Any] func value(forKey: String) -> Any? func write(to: URL, atomically: Bool) -> Bool func write(toFile: String, atomically: Bool) -> Bool struct Iteratorconvenience init?(contentsOf: URL) convenience init?(contentsOfFile: String)
Features
var lazy: LazySequence<Self>A sequence containing the same elements as this sequence, but on which some operations, such as
mapandfilter, are implemented lazily.func all((Self.Element) -> Bool) -> Bool func allSatisfy((Self.Element) throws -> Bool) rethrows -> Bool Returns a Boolean value indicating whether every element of a sequence satisfies a given predicate.
func any((Self.Element) -> Bool) -> Bool func compactMap<ElementOfResult>((Self.Element) throws -> ElementOfResult?) rethrows -> [ElementOfResult] Returns an array containing the non-
nilresults of calling the given transformation with each element of this sequence.func contains(where: (Self.Element) throws -> Bool) rethrows -> Bool Returns a Boolean value indicating whether the sequence contains an element that satisfies the given predicate.
func drop(while: (Self.Element) throws -> Bool) rethrows -> DropWhileSequence<Self> Returns a sequence by skipping the initial, consecutive elements that satisfy the given predicate.
func dropFirst(Int) -> DropFirstSequence<Self> Returns a sequence containing all but the given number of initial elements.
func dropLast(Int) -> [Self.Element] Returns a sequence containing all but the given number of final elements.
func elementsEqual<OtherSequence>(OtherSequence, by: (Self.Element, OtherSequence.Element) throws -> Bool) rethrows -> 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<Self> 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((Self.Element) throws -> Bool) rethrows -> [Self.Element] Returns an array containing, in order, the elements of the sequence that satisfy the given predicate.
func first(where: (Self.Element) throws -> Bool) rethrows -> Self.Element? Returns the first element of the sequence that satisfies the given predicate.
func flatMap<SegmentOfResult>((Self.Element) throws -> SegmentOfResult) rethrows -> [SegmentOfResult.Element] Returns an array containing the concatenated results of calling the given transformation with each element of this sequence.
func forEach((Self.Element) throws -> Void) rethrows Calls the given closure on each element in the sequence in the same order as a
for-inloop.func lexicographicallyPrecedes<OtherSequence>(OtherSequence, by: (Self.Element, Self.Element) throws -> Bool) rethrows -> 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 map<T>((Self.Element) throws -> T) rethrows -> [T] Returns an array containing the results of mapping the given closure over the sequence’s elements.
func max(by: (Self.Element, Self.Element) throws -> Bool) rethrows -> Self.Element? Returns the maximum element in the sequence, using the given predicate as the comparison between elements.
func min(by: (Self.Element, Self.Element) throws -> Bool) rethrows -> Self.Element? Returns the minimum element in the sequence, using the given predicate as the comparison between elements.
func none((Self.Element) -> Bool) -> Bool func prefix(Int) -> PrefixSequence<Self> Returns a sequence, up to the specified maximum length, containing the initial elements of the sequence.
func prefix(while: (Self.Element) throws -> Bool) rethrows -> [Self.Element] Returns a sequence containing the initial, consecutive elements that satisfy the given predicate.
func reduce<Result>(Result, (Result, Self.Element) throws -> Result) rethrows -> Result Returns the result of combining the elements of the sequence using the given closure.
func reduce<Result>(into: Result, (inout Result, Self.Element) throws -> ()) rethrows -> Result Returns the result of combining the elements of the sequence using the given closure.
func reversed() -> [Self.Element] Returns an array containing the elements of this sequence in reverse order.
func shuffled() -> [Self.Element] Returns the elements of the sequence, shuffled.
func shuffled<T>(using: inout T) -> [Self.Element] Returns the elements of the sequence, shuffled using the given generator as a source for randomness.
func sorted(by: (Self.Element, Self.Element) throws -> Bool) rethrows -> [Self.Element] Returns the elements of the sequence, sorted using the given predicate as the comparison between elements.
func split(maxSplits: Int, omittingEmptySubsequences: Bool, whereSeparator: (Self.Element) throws -> Bool) rethrows -> [ArraySlice<Self.Element>] Returns the longest possible subsequences of the sequence, in order, that don’t contain elements satisfying the given predicate. Elements that are used to split the sequence are not returned as part of any subsequence.
func starts<PossiblePrefix>(with: PossiblePrefix, by: (Self.Element, PossiblePrefix.Element) throws -> Bool) rethrows -> 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) -> [Self.Element] Returns a subsequence, up to the given maximum length, containing the final elements of the sequence.
func flatMap<ElementOfResult>((Self.Element) throws -> ElementOfResult?) rethrows -> [ElementOfResult]