Custom Hooks are a great way to encapsulate and reuse logic across different components. React Hooks like useState and useEffect are reusable components that can be used in various scenarios. Sometimes, we need to reuse a component multiple times in our application. In such cases, we can extract the logic from the component and convert it into a hook.
Common Patterns For Using Custom Hook:
- State Management: Custom Hooks can abstract away complex state management logic, such as managing form fields, toggling UI elements, or handling global application states.
-
Side Effects: Hooks like
useEffectenable managing side effects in components. Custom Hooks can encapsulate side effect logic (e.g., fetching data from an API, subscribing to events) and provide a clean interface for components to use. - Data Fetching: Custom Hooks can handle data fetching logic, abstracting away details like making HTTP requests, managing loading and error states, and caching data.
- Authentication: Hooks can encapsulate authentication logic, such as handling user login, logout, and session management. This allows for easy integration of authentication features across different parts of the application.
- Animation: Custom Hooks can abstract animation logic, providing reusable animations for components, such as fade-ins, slide-outs, or complex animations based on user interactions.
- Form Handling: Hooks can simplify form handling by encapsulating form state, validation logic, and submission handling. This promotes reusability and makes it easier to maintain forms across the application.
- Local Storage or Session Storage: Hooks can provide an interface for interacting with browser storage, such as local storage or session storage, abstracting away the details of serialization and deserialization.
- Event Handling: Custom Hooks can encapsulate event handling logic, allowing components to subscribe to and unsubscribe from events without worrying about memory leaks or cleanup.