Keyword Null

Null is a Monkey constant representing an empty Object reference.


Null represents an empty Object, thereby allowing comparison between Null and an object's handle in order to determine whether or not the object actually exists.

An object's handle may also be set to Null, thereby freeing the object and marking it for garbage collection (assuming no other handles still point to it); however, it is recommended that objects be allowed to go out of scope where possible, rather than nullifying them.


See also

Language reference (Classes)


Class Example 
        Field something:Int 
Function Main () 
        Local e:Example 
        ' e = New Example ' Uncomment this line to change the outcome...
        If e = Null Then Print "Object doesn't exist!" Else Print "Object exists!"