What are the best practices for using useReducer in React?

What are the best practices for using useReducer in React?

When using useReducer, it's important to keep your state structure simple, avoid deeply nested states, and use action types for clarity.

Can you give an example of a simple useReducer implementation?

Sure! Here's a basic example:

const initialState = { count: 0 };

function reducer(state, action) {
  switch (action.type) {
    case 'increment':
      return { count: state.count + 1 };
    case 'decrement':
      return { count: state.count - 1 };
    default:
      throw new Error();
  }
}

const [state, dispatch] = useReducer(reducer, initialState);

What should I avoid when using useReducer?

Avoid overcomplicating your reducer logic and ensure that your actions are well-defined to prevent confusion.

How does useReducer compare to useState?

useReducer is better for managing complex state logic, while useState is simpler and more suitable for basic state management.