clojure.clj

(defmacro events [one two & items] (prn one two) (set items))
(events 1 2 3 4 5 6) ; => #{3 4 5 6}
1 2 ; <- printed

clojurescript.cljs

(defmacro events [one two & items] (prn one two) (set items))
(events 1 2 3 4 5 6) ; => #{5 6}
3 4 ; <- printed