clojurescript - 无法在渲染阶段之外操作光标

第一次尝试使用react，我想制作一个简单的待办事项 list 应用程序。但是每次我按Enter触发onSubmit时都会说Uncaught Error: Cannot manipulate cursor outside of render phase, only om.core/transact!, om.core/update!, and cljs.core/deref operations allowed。虽然我认为这是一条非常好的错误消息，但我不知道该怎么办。

(ns app.core
  (:require [om.core :as om :include-macros true]
            [sablono.core :as html :refer-macros [html]]))

(def app-state (atom
                {:todos [{:todo "first"}
                         {:todo "second"}]
                 :current ""}))

(defn to-do
  [data]
  (om/component
   (html [:li (:todo data)])))

(defn to-dos
  [data]
  (om/component
   (html [:div
          [:form {:on-submit (fn [e]
                               (.preventDefault e)
                               (om/transact! data :todos (fn [v]
                                                           (js/console.log (:current data))
                                                           (conj v (:current data)))))}
           [:input {:type "text"
                    :placeholder "Enter some text."
                    :on-change (fn [e] (om/update! data :current (.. e -target -value)))}]]
          [:ul
          (om/build-all to-do (:todos data))]])))

(om/root to-dos app-state {:target js/document.body})

最佳答案

我认为问题是您在om/transact中访问data的地方!您应该在v上进行操作的地方:
(:current v)代替(:current data)
或者您可以尝试(:current @data)获取最新数据值

关于clojurescript - 无法在渲染阶段之外操作光标，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/24548626/