Sujet : Re: CAR/CDR vs FIRST/REST
De : Nobody447095 (at) *nospam* here-nor-there.org (B. Pym)
Groupes : comp.lang.lispDate : 12. Sep 2024, 19:59:57
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vbva6t$c0o9$1@dont-email.me>
User-Agent : XanaNews/1.18.1.6
Barry Margolin wrote:
(mapcan #'(lambda (x) (and (numberp x) (list x))) list)
(loop for x in list
when (numberp x) collect x)
I agree with this example. Once I learned LOOP I never used the
above idiom again.
(filter number? '(a b c 1 2 3))
===>
(1 2 3)
Does using "loop" cripple the brain, or do only those
with crippled brains use "loop"?
Re: CAR/CDR vs FIRST/REST
Re: CAR/CDR vs FIRST/REST