index.js

import React from 'react'
import ReactDOM from 'react-dom'
import './index.css'
import App from './App'
import { createStore, combineReducers } from 'redux'
import { Provider } from 'react-redux'
import * as serviceWorker from './serviceWorker'

import languageReducer from './store/languageReducer'
const store = createStore(
  combineReducers({
    languageReducer,
  }), window.__REDUX_DEVTOOLS_EXTENSION__ && window.__REDUX_DEVTOOLS_EXTENSION__()

)

ReactDOM.render(
  <Provider store={store}>
    <App />
  </Provider>
  , document.getElementById('root'))

serviceWorker.unregister()