An example of using `for` vs `map` to apply components

example.cljs

(defn render-cell [{:keys [cellname]}]
  (println "cell-name" cellname)
  ;; Note the key here
  [:div {:key cellname}
   [:p cellname]])

;; This version works as expected - if I change
;; the second cell, the "println" above only fires for that cell
(defn visible-cells [cells]
  [n/view
   {}
   (for [cell cells]
     ^{:key (:cellname cell)} [render-cell cell])])

;; This doesn't work - if I change the second cell, the
;; println above fires for all cells
(defn visible-cells2 [cells]
  [n/view
   {}
   (map render-cell cells)])