Class

NSNull

A singleton object used to represent null values in collection objects that don’t allow nil values.

Overview

NSNull is “toll-free bridged” with its Core Foundation counterpart, CFNullRef. See Toll-Free Bridging for more information on toll-free bridging.

Topics

Obtaining an instance

null

Returns the singleton instance of NSNull.

Relationships

Inherits From

See Also

Special Semantic Values

NSNotFound

A value indicating that a requested item couldn’t be found or doesn’t exist.