In Redux, if you edit the user's name, that would dispatch/trigger an action {type: 'SET_USER_NAME', payload: 'New Name'}. The store would take the current stat

In Redux, if you edit the user's name, that would dispatch/trigger an action {type: 'SET_USER_NAME', payload: 'New Name'}. The store would take the current state and the action and generate the new state. Then it would send it to React to cause a re-render of everything to the virtual DOM (not just everywhere the username was, but actually the entire view). And then it diffs the vDOM with the real DOM and updates the real DOM anywhere it's different.