React store.getState 不是函数

Question

这是我的代码：

store.js

import {createStore, applyMiddleware, compose} from 'redux';
import {fromJS} from 'immutable';
import {routerMiddleware} from 'react-router-redux';
import createSagaMiddleware from 'redux-saga';
import createReducer from './reducers';

const sagaMiddleware = createSagaMiddleware();

export default function configureStore(initialState = {}, history) {
    // Create the store with two middlewares
    // 1. sagaMiddleware: Makes redux-sagas work
    // 2. routerMiddleware: Syncs the location/URL path to the state
    const middlewares = [sagaMiddleware, routerMiddleware(history)];

    const enhancers = [applyMiddleware(...middlewares)];

    const store = createStore(createReducer, fromJS(initialState), enhancers);

    // Extensions
    store.runSaga = sagaMiddleware.run;
    store.asyncReducers = {}; // Async reducer registry

    return store;
}

路由.js

import React from 'react';
import {Route, Router, IndexRoute, browserHistory} from 'react-router';
import {syncHistoryWithStore} from 'react-router-redux';
import store from './store';

import Welcome from './containers/Welcome';

const history = syncHistoryWithStore(browserHistory, store);

const routes = (
    <Router history={history}>
        <Route path="/">
              <IndexRoute component={Welcome} />
        </Route>
    </Router>
);

export default routes;

索引.js

import React from 'react';
import ReactDOM from 'react-dom';
import {browserHistory} from 'react-router';
import { Providers } from 'react-redux';
import configureStore from './store';
import routes from './routes';


const initialState = {};
const store = configureStore(initialState, browserHistory);

ReactDOM.render(
    <Provider store={store}>
        {routes}
    </Provider>, document.getElementById('main-content')
);

我找不到罪魁祸首在哪里。 我试图调试它，但找不到真正导致这些错误的原因。 错误：未捕获的类型错误：store.getState 不是函数

有什么解决办法吗？

Answer 1

这是一个产生错误的错字： TypeError: store.getState is not a function

错误的

const store = createStore(()=>[], {}, applyMiddleware);

正确的

const store = createStore(()=>[], {}, applyMiddleware());

请注意applyMiddleware上添加的括号() 。

Answer 2

请注意，在您的Routes.js ， store未正确初始化。 您应该添加这些行：

  const initialState = {};
  const store = configureStore(initialState, browserHistory);

就像在你的index.js文件中一样。

Answer 3

我正在这样做（动态要求）..

    const store = require('../store/app')
    state = store.getState()

但是出于某种原因，在使用require而不是import您必须这样做..

    const store = require('../store/app')
    state = store.default.getState()

Answer 4

希望它会有所帮助，但在我的情况下，我收到此错误，因为我的商店如下所示，这是一个函数：

 const store = preloadedState => {
    let initialState={}
    //some code to modify intialState
   
    return createStore(reducer, initialState)
}

但在 index.js 中，我将 store 作为函数传递，而不是它返回的值。

错

<Provider store={store}>
    <MyApp />
</Provider>

正确的

<Provider store={store()}>
    <MyApp />
</Provider>

Answer 5

不确定这是否会有所帮助，但您从 react-redux 库中命名了 import { Providers } 而不是 { Provider } 。

Answer 6

这就是解决方案，祝你好运🤞

import { applyMiddleware, combineReducers, createStore } from "redux";
import { composeWithDevTools } from "redux-devtools-extension";
import thunk from 'redux-thunk'

const reducer = combineReducers({
    products: []
})

const middleware = [thunk]

const store = createStore(
    reducer,
    composeWithDevTools(applyMiddleware(...middleware))
)

export default store

Answer 7

    <Provider store={store().store}>
        <MyApp />
    </Provider>

Answer 8

在 index.js 中，我们必须提供store()方法作为 props 值而不是store 。

<Provider store={store()}>
   {routes}
</Provider>

更新了index.js文件。

import React from 'react';
import ReactDOM from 'react-dom';
import {browserHistory} from 'react-router';
import { Providers } from 'react-redux';
import configureStore from './store';
import routes from './routes';


const initialState = {};
const store = configureStore(initialState, browserHistory);

ReactDOM.render(
    <Provider store={store()}>
        {routes}
    </Provider>, document.getElementById('main-content')
);

Answer 9

TypeError: store.getState is not a function - 当您没有正确初始化中间件函数时，通常会发生此错误。 您需要做的如下

您需要在 applyMiddleware ( ) 函数上添加括号，然后它会按照您的预期运行。

const store = createStore(()=>[], {}, applyMiddleware());

Answer 10

用 store() 替换 store 对我有用。 写在下面：

<Provider store={store()}>
   {routes}
</Provider>