better-cond

This looks great, I'm still learning Janet and couldn't write it myself. I only know about: https://github.com/Engelberg/better-cond in clojure which is different it adds syntax enhancement + control flow convenience. Similar better-cond can be written in clojure too: (defn better-cond [& clauses] (fn [& args] (some (fn [[pred result]] (when (apply pred args) (if (fn? result) (apply result args) result))) (partition 2 clauses)))) But it's not composable as Janet's version, it will fail when mapped over, because it may return a plain value instead of a callable one. In Janet, all values can naturally participate in higher-order contexts due to its uniform treatment of callables, while in Clojure, only actual functions can be composed or mapped.

There is a neat macro I've been using to solve problems like the nested if-lets in the post: https://github.com/Engelberg/better-cond (b/cond :let [x (foo)] (not x) (do (log "foo failed") false) :let [y (bar x)] (not y) (do (log "bar failed") false) :let [z (baz x y)] (not z) (do (log "baz failed") false) :else (do (qux x y z) (log "it worked") true))