reactjs - sidebar not working after store update - node.js

Question

I am using reactjs.
node: version 14
I am developing on core-ui-react-template.
Sidebar did not work after updating the ./store file. I put the contents of the store file and index.js file below.
original website core.io
I have been working on it for a few days but I could not get any results. I couldn't find where was the mistake
index.js
import 'react-app-polyfill/ie11'; // For IE 11 support
import 'react-app-polyfill/stable';
import './polyfill'
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App';
import * as serviceWorker from './serviceWorker';
import { icons } from './assets/icons'
import store from './store'
import { transitions, positions, Provider as AlertProvider } from 'react-alert'
import AlertTemplate from 'react-alert-template-basic'
import {Provider} from 'react-redux';
import ReactNotification from 'react-notifications-component';
import 'react-notifications-component/dist/theme.css'
React.icons = icons;
const options = {
position: positions.BOTTOM_RIGHT,
timeout: 5000,
offset: '1px',
transition: transitions.SCALE,
};
console.log(store.getState());
ReactDOM.render(
<Provider store={store}>
<AlertProvider template={AlertTemplate} {...options}>
<ReactNotification/>
<App/>
</AlertProvider>
</Provider>,
document.getElementById('root')
);
serviceWorker.unregister();
./store.js
import {applyMiddleware, combineReducers, compose, createStore} from "redux";
import customerReducer from "./components/helpers/reducers/customerReducer";
import userReducer from "./components/helpers/reducers/userReducer";
import appointmentsReducer from "./components/helpers/reducers/appointmenstReducer";
import thunk from "redux-thunk";
const initialState = {
sidebarShow: 'responsive'
};
const changeStateReducer = (state = initialState, { type, ...rest }) => {
switch (type) {
case 'set':
return {...state, ...rest };
default:
return state
}
};
const rootReducers = combineReducers({
customerInfo: customerReducer,
account_profile: userReducer,
appointmentsList: appointmentsReducer,
changeState: changeStateReducer
});
const allEnhancers = compose(
applyMiddleware(thunk)
);
const store = createStore(
rootReducers,
allEnhancers
);
export default store
As you know, I use core-ui-react template. There is a link below.
But after updating the ./store file, it shows "undefined" when I show it with console.log (sidebarShow) in "const sidebarShow = useSelector (state => state.sidebarShow)" line in TheHeader file.
https://github.com/coreui/coreui-free-react-admin-template/blob/master/src/containers/TheHeader.js
I think "useSelector (state => state.sidebarShow)" doesn't get the function here. It originates from here.

Answer 1

check out how combineReducers works: https://redux.js.org/api/combinereducers
your selector should be:
const sidebarShow = useSelector(state => state.changeState.sidebarShow)
you'll notice that changeState is not a very good key name, but that is another issue :)