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Null object: Difference between revisions
Added zkl
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=={{header|Wart}}==
The null value ''nil'' is also the only false value.
<lang wart>(not nil)
</lang>
=={{header|zkl}}==
In zkl, there isn't a C like 0/NULL, a value that, if referenced, causes bad things to happen. There is an Object, Void, that is used as generic NULL like thing but it is just another object.
<lang zkl>if(Void == n) ...
return(Void)</lang>
{{omit from|GUISS}}
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