What is a Hook?
Hooks allow us to “hook” into React features such as state and lifecycle methods.
Some commonly used hooks include:
useState:
This hook allows functional components to manage state. It returns a stateful value and a function to update that value, enabling you to add state to functional components.
useEffect:
This hook allows you to perform side effects in functional components. It replaces lifecycle methods like componentDidMount, componentDidUpdate, and componentWillUnmount.
useContext:
This hook allows functional components to consume context. It enables you to access context values without needing to wrap your components in Context.Consumer.
useReducer:
This hook is an alternative to useState that allows you to manage more complex state logic using a reducer function.
useCallback & useMemo:
These hooks are used for performance optimization by memoizing functions and values to prevent unnecessary re-renders.
And there are many more hooks available in React for various purposes.
Hooks have greatly simplified state management and side effect handling in React applications, making it easier to write and maintain functional components. They also encourage better code organization and reusability.
