Managing Complex State with useReducer
Explore how to manage multiple related pieces of state using React's useReducer Hook. Understand its syntax and benefits over useState, and apply it to build scalable components like shopping carts and forms.
When components need to manage multiple related pieces of state, relying only on useState quickly becomes repetitive. Each piece of state requires its own setter; resets must be handled manually, and logic often gets scattered across the component. For example, a form with several fields or a shopping cart with multiple items can feel bloated and fragile with useState.
This is where useReducer comes in. It centralizes all state updates into one function, making state transitions predictable and easier to maintain.
Understanding useReducer
The useReducer Hook is an alternative to useState that is well-suited for managing complex state logic or when multiple state variables are closely related. Instead of calling several setters, we define a single reducer function that decides how the state changes in response to ...