(mapcat f)
(mapcat f & colls)
Returns the result of applying concat to the result of applying map
to f and colls. Thus function f should return a collection. Returns
a transducer when no collections are provided
Source
(defn mapcat
"Returns the result of applying concat to the result of applying map
to f and colls. Thus function f should return a collection. Returns
a transducer when no collections are provided"
{:added "1.0"
:static true}
([f] (comp (map f) cat))
([f & colls]
(apply concat (apply map f colls))))