Reordering arguments

Clojure both uses functions which need the value they operate on to be the last argument (like map) and functions which need the vault they operate on to be the first argument (like assoc and protocol functions working on reified objects). compose provides functions reordering arguments to make composing functions of both styles together.

>>->

>>-> reorders arguments to make a function needing arguments at the start to fit into a context providing the arguments at the end:

user> (->> {:a 1, :b 2}
           ((>>-> assoc) :c 9))
{:a 1, :b 2, :c 9}

>->>

>->> reorders arguments to make a function needing arguments at the start to fit into a context providing the argument first:

user> (-> {:a 1, :b 2}
          ((>->> map) str))
("[:a 1]" "[:b 2]")