How do useReducer and useContext work together to simplify state management in a React application?
useReduceranduseContextin React work together to manage state in larger applications by providing a more predictable way to handle complex state logic. TheuseReducerhook accepts a reducer function and an initial state, returning the current state paired with a dispatch function. This allows for the management of more complex state logic that might involve multiple sub-values or when the next state depends on the previous one.
On the other hand,
useContextis used to create global state that can be accessed anywhere in the application. By wrapping the application with a Context Provider, components can access the state without having to pass props down manually at every level. CombininguseReducerwithuseContextallows for a greater consistency and efficiency in managing state, by providing a central store and dispatching actions to update state. For instance, you could combine them to create a theme switcher, where theuseContextprovides access to the current theme, anduseReducerupdates the theme.