Redux Toolkit Explained: Managing Shared React State with a Central Store

Redux Toolkit is the official recommended library for managing global state in React applications. It addresses the difficulty of sharing data between components, such as a Navbar cart count and a Cart component, by keeping that data in a single central Redux Store. The article walks through core concepts including slices, reducers, useSelector, and useDispatch. It then demonstrates a simple counter example using createSlice, configureStore, and the Provider wrapper. The author notes that useState and useContext may suffice for small projects, while Redux Toolkit suits larger applications with complex shared state.