https://chrome.google.com/webstore/detail/redux-devtools/lmhkpmbekcpmknklioeibfkpmmfibljd
$ yarn add redux-devtools-extension
import { composeWithDevTools } from 'redux-devtools-extension';
const store = createStore(rootReducer, composeWithDevTools());
// 스토어를 만들 때,
// composeWithDevTools 를 사용하여 리덕스 개발자 도구 활성화
middleware와 함께 store를 생성할 때 다음과 같이 익스텐션 인자를 전달해준다.
ReactDOM.render(
<React.StrictMode>
<Provider store={createStoreWithMiddleware(
Reducer,
window.__REDUX_DEVTOOLS_EXTENSION__&&
window.__REDUX_DEVTOOLS_EXTENSION__()
)}>
<BrowserRouter>
<App/>
</BrowserRouter>
</Provider>
</React.StrictMode>,
document.getElementById('root')
);