gistfile1.txt

import {createStore} from 'redux'
import {Provider} from 'react-redux'

const initialState = {username : "Farshid"};
const returnStateReducer = (state= initialState) =>{
    return state;
}
const store =createStore(returnStateReducer);
const App= () => {
  return (
    <Provider store={store}>
      <div>
        <Header/>
        <h1>Hello  World</h1>
      </div>
    </Provider>
  )
}
export default  App;