Javascript 试剂不';重新加载部件,在let内部进行卸载
我有atomJavascript 试剂不';重新加载部件,在let内部进行卸载,javascript,clojure,clojurescript,reagent,re-frame,Javascript,Clojure,Clojurescript,Reagent,Re Frame,我有atomfoo: (defonce foo (r/atom "foo")) 我有一个父组件: (defn parent-component [] (js/setTimeout #(reset! foo "bar") 5000) (child-component {:foo foo})) (defn child-component [props] (let [derefed (deref (:foo props))] (fn [] [:div
foo
:
(defonce foo (r/atom "foo"))
我有一个父组件:
(defn parent-component []
(js/setTimeout #(reset! foo "bar") 5000)
(child-component {:foo foo}))
(defn child-component [props]
(let [derefed (deref (:foo props))]
(fn []
[:div
[:p derefed]
[:p (deref (:foo props))]])))
我有子组件:
(defn parent-component []
(js/setTimeout #(reset! foo "bar") 5000)
(child-component {:foo foo}))
(defn child-component [props]
(let [derefed (deref (:foo props))]
(fn []
[:div
[:p derefed]
[:p (deref (:foo props))]])))
重置foo
后只更新第二段
为什么会这样?来自有关表单2组件的重新构建文档: 您需要在内部函数中再次重复外部函数参数:
(defn child-component [props]
(fn [props]
(let [derefed (deref (:foo props))]
[:div
[:p derefed]
[:p (deref (:foo props))]])))
请注意,在使用re-frame及其订阅时,在这种情况下不必使用form-2组件: