Hi, I just solved the "Replicate a Sequence" problem on 4clojure [1] using "interleave". However, I noticed that "interleave" cannot be called with a single argument. My first attempt at solving the problem was like this:
(defn replicate-n-times [xs n] (apply interleave (replicate n xs))) This works fine for n > 1: clojure=> (replicate-n-times [1 2 3] 3) (1 1 1 2 2 2 3 3 3) However, for n = 1 the function fails with an exception: clojure=> (replicate-n-times [1 2 3] 1) ArityException Wrong number of args (1) passed to: core$interleave clojure.lang.AFn.throwArity (AFn.java:437) I had to add a special case to make this work: (fn replicate-n-times [xs n] (if (= n 1) xs (apply interleave (replicate n xs)))) I think it would be nice if "interleave" called with a single argument would just return the argument itself, just like single-argument "+" and "*" do. Regards, Denis Washington [1] http://www.4clojure.com/problem/33 -- -- 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/groups/opt_out.