Stanislas Nanchen <stanislas.nanc...@gmail.com> writes: > You miss one parentheses at the end of your expression > > (defn boolean [x] > (if (and (nil? x) (false? x)) > ))
And now you have an if without then which will give you another exception. And the test expression is a contradiction, i.e., it's always false. Nothing can be both nil? and false?. > I have to check if x is a nil or false and then the output must be > false,\ Otherwise I have to be true. Why? nil and false are already falsy, everything else is true. And if you have to interact with java where some method wants some "real" boolean, then there's already clojure.core/boolean. Bye, Tassilo -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com 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 clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
