re-frame/src/re_frame/utils.cljs

 (ns re-frame.utils)


 (defn warn
   [& args]
   (.warn js/console (apply str args)))

 (defn dbg
   [& args]
   (.debug js/console (apply str args)))

 (defn log
   [& args]
   (.log js/console (apply str args)))

 (defn group
   [& args]
   (.group js/console (apply str args)))

 (defn groupEnd
   []
   (.groupEnd js/console))

 (defn first-in-vector
  [v]
  (if (vector? v)
    (first v)
    (warn "re-frame: expected a vector event, but got: " v)))