Elisp List Contains a Value

Question

How do you check, in elisp, if a list contains a value? so the following would return t:

(contains 3 \'(1 2 3))

but

(contains          


        

Answer 1

freiksenet's answer is good and idiomatic. If you are using dash.el, you could also call function -contains?, which does exactly the same—checks if some list contains an element:

(-contains? '(1 2 3) 2) ; t