type
Datatype of an object
type x type[x]
Where x is any object, returns its datatype.
The datatype is a short int: negative for atoms, positive for vectors, 0h for a general list.
q)type 5 / integer atom
-6h
q)type 2 3 5 / integer vector
6h
q)type (2;3 5;"hello") / mixed list
0h
q)type each (2;3 5;"hello") / mixed list
-6 9 10h
q)type (+) / function atom
102h