Thanks,
But something is not going right.
When delete the if as you said and have this :
(defn boolean [x]
(or (false? x)(nil? x))
false;
true)
(defn abs [x]
(< x 0)
(* x -1);
x)
(defn teen? [age]
(< 12 age 20)
true;
false)
Then all tests fail and if I put a if before it , they all work well.
Roelof
Op woensdag 23 april 2014 12:19:01 UTC+2 schreef James Reeves:
> (< a b c) is equivalent to (and (< a b) (< b c)), so yes, (< 12 age 20) is
> the same as 12 < age < 20.
>
> You could write your function more concisely as:
>
> (defn teen? [age]
> (< 12 age 20))
>
> The "if" statement is unnecessary.
>
> - James
>
>
> On 23 April 2014 11:11, Roelof Wobben <[email protected] <javascript:>>wrote:
>
>> Hello,
>>
>> I do not understand why this work.
>>
>> I have to check if someone is between 12 and 20 years.
>>
>> So after some trail and error this seems to work
>>
>> (defn teen? [age]
>> (if (< 12 age 20)
>> true;
>> false))
>>
>> Is it right it stated 12 < age < 20 ?
>>
>> Roelof
>>
>> --
>> You received this message because you are subscribed to the Google
>> Groups "Clojure" group.
>> To post to this group, send email to [email protected]<javascript:>
>> Note that posts from new members are moderated - please be patient with
>> your first post.
>> To unsubscribe from this group, send email to
>> [email protected] <javascript:>
>> For more options, visit this group at
>> http://groups.google.com/group/clojure?hl=en
>> ---
>> You received this message because you are subscribed to the Google Groups
>> "Clojure" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to [email protected] <javascript:>.
>> For more options, visit https://groups.google.com/d/optout.
>>
>
>
--
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to [email protected]
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
---
You received this message because you are subscribed to the Google Groups
"Clojure" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/d/optout.
