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Probably the most simple type, it can be used as no value.
It might be convenient to use nil
as the last statement in a query to prevent
returning data which is not required. See the code example.
This code uses
nil
to prevent returning unused data:
my_array = [1, 2, 3, 42];
nil; /* without nil, the array above would be returned */
Return value in JSON format
null