TL;DR: Allowing Redux DevTools Extension in production has lots of benefits and no harm. To make it…

Note that window.devToolsExtension has been renamed to window.__REDUX_DEVTOOLS_EXTENSION__.

Even if you’re using Redux, seldom you have a single source of truth. There’re local states in your React components or some effects in thunks and sagas, which…

“ Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it. ” — Brian Kernighan