React Quiz - 3

What does JSX stand for in React?

• Java Syntax Extension

• JavaScript XML

• JSON XML

• JavaScript Extension

How do we pass data from parent to child component?

• state

• redux

• props

• None of the above

What is the purpose of the 'key' prop in React?

• To identify elements in a list

• To manage state

• To style components

• To handle events

Which lifecycle method is called after a component is rendered for the first time?

• render

• componentDidUpdate

• componentWillUnmount

• componentDidMount

What is the default value of 'props' in a functional component?

• null

• undefined

• an empty array

• an empty object

What is the purpose of the 'useEffect' hook in React?

• To optimize performance

• To handle events

• To perform side effects in function components

• To manage component state

Which method is used to update the state in a class component?

• modifyState

• setState

• updateState

• changeState

What is the main purpose of React Router?

• To style components

• To handle routing in a React application

• To manage application state

• To fetch data from APIs

What is the purpose of the 'useState' hook in React?

• To optimize rendering

• To manage state in functional components

• To handle component lifecycle

• To manage side effects

Which method is called just before a component is removed from the DOM?

• componentWillUnmount

• componentDidMount

• componentDidUpdate

• render