Type Method

dictionaryWithSharedKeySet:

Creates a mutable dictionary which is optimized for dealing with a known set of keys.

Declaration

+ (NSMutableDictionary<KeyType, ObjectType> *)dictionaryWithSharedKeySet:(id)keyset;

Parameters

keyset

The keyset, created by the NSDictionary class method sharedKeySetForKeys:.

Return Value

A new mutable dictionary optimized for a known set of keys.

Discussion

Keys that are not in the key set can still be set in the dictionary, but that usage is not optimal.

See Also

Creating and Initializing a Mutable Dictionary

+ dictionaryWithCapacity:

Creates and returns a mutable dictionary, initially giving it enough allocated memory to hold a given number of entries.

- initWithCapacity:

Initializes a newly allocated mutable dictionary, allocating enough memory to hold numItems entries.

- init

Initializes a newly allocated mutable dictionary.