When state logic gets complex, useReducer helps keep updates predictable. useContext avoids prop drilling, and custom hooks let you reuse logic.

• useReducer is like a mini Redux: state + actions.
• useContext shares values deep in the tree without passing props.
• Custom hooks extract reusable stateful logic.

Create a counter powered by useReducer. Dispatch an INCREMENT action and read the new count from state.

When state logic gets complex, useReducer helps keep updates predictable. useContext avoids prop drilling, and custom hooks let you reuse logic.

• useReducer is like a mini Redux: state + actions.
• useContext shares values deep in the tree without passing props.
• Custom hooks extract reusable stateful logic.

Create a counter powered by useReducer. Dispatch an INCREMENT action and read the new count from state.