A new array containing the dictionary’s keys, or an empty array if the dictionary has no entries.
A new array containing the dictionary’s values, or an empty array if the dictionary has no entries.
The number of entries in the dictionary.
Returns the value associated with a given key.
Returns the value associated with a given key.
Creates an empty dictionary.
Increments the receiver’s reference count.
Allocates a new instance of the receiving class, sends it an init message, and returns the initialized object.
Decrements the receiver’s reference count.
Deallocates the memory occupied by the receiver.
Decrements the receiver’s retain count at the end of the current autorelease pool block.