【发布时间】:2020-03-04 11:26:26
【问题描述】:
我正在学习 redux 并想出了一个使用 web 服务的示例 返回数据。一切正常。但是我配置了 redux 开发者工具 下面。
我收到一条错误消息,提示我的商店已分配一个值但从未使用过,当我进入时 我的开发工具,我无法看到我的状态数据。我是不是做错了什么?
import React from 'react';
import ReactDOM from 'react-dom';
import { BrowserRouter as Router, Route } from 'react-router-dom';
import promise from 'redux-promise';
import { Provider } from 'react-redux';
import { createStore, applyMiddleware, compose } from 'redux';
import reducers from './reducers';
import ProductsIndex from './components/products_index';
const createStoreWithMiddleware = applyMiddleware(promise)(createStore);
const composeEnhancers = window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__ || compose;
const store = createStore(
reducers,
composeEnhancers(applyMiddleware())
);
ReactDOM.render(
<Provider store={createStoreWithMiddleware(reducers)}>
<Router>
<div>
<Route path="/" component={ProductsIndex} />
</div>
</Router>
</Provider>
, document.querySelector('#root'));
错误:第 14:7 行:“store”被分配了一个值,但从未使用过 no-unused-vars
【问题讨论】:
-
能否请将
const createStoreWithMiddleware = applyMiddleware(promise)(createStore);更改为const createStoreWithMiddleware = applyMiddleware(promise)(store);并放在store初始化之后。不确定applyMiddleware语法让我们试试看。 -
或者你可以这样做:
const middleware = [promise];const composEnhancers = window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__ || compose;const enhancer = composEnhancers(applyMiddleware(...middleware));const configureStore = (initialState?: any) => { return createStore(reducers, initialState, enhancer); };<Provider store={configureStore()} > -
这些都不适合我
-
错误是什么?
-
从您提供的第一个解决方案中,我得到了 TypeError: createStore.apply is not a function
标签: reactjs redux redux-devtools