[snorremd]

For those that don't know. In Clojure it is also perfectly valid to drop the parantheses for each subsequent call in a threading macro if you don't want to pass in any additional arguments:

  (-> x f g h)

If you need to pass an additional argument to g you can always do:

  (-> x f (g foo) h)

There are thread first ->, thread last ->>, and even a thread as "as->" depending on where you want to place the argument when you pipe the result through the thread of functions.