Instance Method

allKeysForObject:

Returns a new array containing the keys corresponding to all occurrences of a given object in the dictionary.

Declaration

- (NSArray<KeyType> *)allKeysForObject:(ObjectType)anObject;

Parameters

anObject

The value to look for in the dictionary.

Return Value

A new array containing the keys corresponding to all occurrences of anObject in the dictionary. If no object matching anObject is found, returns an empty array.

Discussion

Each object in the dictionary is sent an isEqual: message to determine if it’s equal to anObject.

See Also

Accessing Keys and Values

allKeys

A new array containing the dictionary’s keys, or an empty array if the dictionary has no entries.

allValues

A new array containing the dictionary’s values, or an empty array if the dictionary has no entries.

- valueForKey:

Returns the value associated with a given key.

- getObjects:andKeys:count:

Returns by reference C arrays of the keys and values in the dictionary.

- getObjects:andKeys:

Returns by reference C arrays of the keys and values in the dictionary.

Deprecated
- objectsForKeys:notFoundMarker:

Returns as a static array the set of objects from the dictionary that corresponds to the specified keys.

- objectForKey:

Returns the value associated with a given key.

- objectForKeyedSubscript:

Returns the value associated with a given key.