flavor function is unlike most other functions (and like
origin function) in that it does not operate on the values of
variables; it tells you something about a variable.
Specifically, it tells you the flavor of a variable (see The Two Flavors of Variables).
The syntax of the
flavor function is:
Note that variable is the name of a variable to inquire about; not a reference to that variable. Therefore you would not normally use a ‘$’ or parentheses when writing it. (You can, however, use a variable reference in the name if you want the name not to be a constant.)
The result of this function is a string that identifies the flavor of the variable variable: