Hey there,
I'm trying to understand this bit from the Om TodoMVC app:
(defn toggle-all [e state]
(let [checked (.. e -target -checked)]
(om/transact! state :todos
(fn [todos] (vec (map #(assoc % :completed checked) todos))))))
What I don't understand is: why is the 'vec' function used here? It seems to
work fine without it.
Regards
Stephan
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