When a component extends ________, it automatically implements shouldComponentUpdate with a shallow comparison of state and props.
- Component
- PureComponent
- React.Component
- React.PureComponent
When a component extends React.PureComponent, it automatically implements shouldComponentUpdate with a shallow comparison of state and props. This shallow comparison helps in optimizing rendering by preventing unnecessary updates when there are no actual changes to state or props.
Loading...
Related Quiz
- What is the main difference between stateful and stateless components in React?
- To store the previous state or props in functional components, you can use the ________ hook.
- You're building a blog with Next.js. You want each blog post to have a unique URL based on its title, but you don't want to create a new page component for each post. How would you achieve this?
- What is the primary purpose of Jest in the React ecosystem?
- When mocking a specific function implementation with Jest, you would use the method ________ on the mock.