正确操作试剂状态

Question

我刚刚学习 Clojurescript 中的 Reagent，我只是在学习一些教程，但也许我错过了一些东西我有这个状态代码

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

和渲染视图

(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

atom 应该交换而不是 :click-count

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

正确操作试剂状态

Correctly manipulating state in reagent

clojure

clojurescript

reagent