bradlucas/gist:1233763

## gistfile1.txt
(defn find-new-members
  "Return the new people are only in the new-list but not in the current-list.
Both lists are lists of maps where they have at least :first_name and :last_name keys.
"
  [current-list new-list]
  (let [existing (set (remove #(nil? (second %)) (map (juxt :first_name :last_name) current-list)))]
    (remove #(existing ((juxt :first_name :last_name) %)) new-list)))
	(defn find-new-members
	"Return the new people are only in the new-list but not in the current-list.
	Both lists are lists of maps where they have at least :first_name and :last_name keys.
	"
	[current-list new-list]
	(let [existing (set (remove #(nil? (second %)) (map (juxt :first_name :last_name) current-list)))]
	(remove #(existing ((juxt :first_name :last_name) %)) new-list)))