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- Posts: 2
- Joined: Thu Apr 26, 2018 10:22 am
I am trying to write a function which is checking whether element is in list(return true) or not(return false.)
Code: Select all
(define in? (lambda ('el lst)
(cond ((member el lst '#t) (else '#f)))
(in? 3 '(2 5 3))
In this case my expected output is #t but i get Error: execute: unbound symbol: "el" [in?] error.
another test case is :
my expected output is #f