Custom Hooks vs Class Components

What are the main differences between custom hooks and class components in React?

Custom hooks are functions that allow you to reuse stateful logic, while class components are ES6 classes that manage their own state and lifecycle methods.

Can you give me an example of when to use a custom hook instead of a class component?

Sure! If you need to share stateful logic across multiple components, a custom hook is ideal. For instance, fetching data from an API can be encapsulated in a custom hook, making it reusable.

Are there any performance benefits to using custom hooks over class components?

Yes, custom hooks can lead to better performance by reducing the complexity of your components and allowing for more granular updates, as they can be composed and reused without the overhead of class lifecycle methods.

What are some common pitfalls when using custom hooks?

Common pitfalls include not following the rules of hooks, such as calling them conditionally or inside loops, which can lead to unexpected behavior.