Hi Mamun,
This is the correct syntax (you're missing some parens).
(defn check-keyword [v] {:pre [(keyword? v)]} v)
Thanks,
Ambrose
On Thu, Feb 13, 2014 at 6:47 PM, Mamun <[email protected]> wrote:
> Hi
>
> I am just testing clojure :pre condition. But look like using keyword?, it
> is not working in clojure 1.5.1.
>
> (defn check-keyword [v] {:pre [keyword? v]} v)
>
> (defn check-nil [v] {:pre [nil? v]} v)
>
> (check-keyword "sdf") ;Not throwing exception here
>
> (check-nil nil) ;Throwing exception
>
>
>
> Br,
>
> Mamun
>
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