clojure - 试剂的正确操作状态

Question

我只是在 Clojurescript 中学习了 Reagent，我只是在学习一些教程，但也许我错过了一些我有这个状态代码的东西

(defonce app-state (atom {:text "Hello Chestnut!" :click-count 0}))

和渲染 View

(defn article []
  [:div
   [:div "The atom" [:code "click-count"] " has value : " (:click-count @app-state)]
   [:input {:type "button" :value "Add"
            :on-click #(swap! (:click-count @app-state) inc)}]
   ]
  )

我试图在按下按钮时增加状态，但我在控制台上收到此错误

Error: No protocol method ISwap.-swap! defined for type number: 0

Answer 1

应该交换原子而不是 :click-count

(swap! app-state update :click-count  inc)