What are the differences between class components and functional components in React?

Question

Accepted Answer

Class components use ES6 classes and have access to lifecycle methods, while functional components are simpler and use functional syntax.

Class components are defined using ES6 classes and extend from React.Component
Functional components are simpler and use functional syntax, making them easier to read and write
Class components have access to lifecycle methods such as componentDidMount, componentDidUpdate, etc.
Functional components are stateless and do not have access to lifecycle methods
With the introduction of React Hooks, functional components can now have state and lifecycle methods as well

Interview Questions Asked to Senior React JS Developer at Other Companies