Instance Method

removeObject(forKey:)

Removes a given key and its associated value from the dictionary.

Declaration

func removeObject(forKey aKey: Any)

Parameters

aKey

The key to remove.

Discussion

Does nothing if aKey does not exist.

For example, assume you have an archived dictionary that records the call letters and associated frequencies of radio stations. To remove an entry for a defunct station, you could write code similar to the following:

NSMutableDictionary *stations = nil;
 
stations = [[NSMutableDictionary alloc]
        initWithContentsOfFile: pathToArchive];
[stations removeObjectForKey:@"KIKT"];

See Also

Removing Entries From a Mutable Dictionary

func removeAllObjects()

Empties the dictionary of its entries.

func removeObjects(forKeys: [Any])

Removes from the dictionary entries specified by elements in a given array.