std-rposition | ![]() |
"reverse position". STD-RPOSITION
returns the last found position (index) of x in lst. It returns either an integer number or nil if not found. If x is the car of lst, then 0 is returned.
(std-rposition 2 '(2 1 2 3)) => 2 (std-rposition 'a '(0 1 2 3)) => nil
x: any lisp expression.
lst: any proper list.
An integer number or nil.
None.
(std-require 'STDLIST)
Defined in STDLIST
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