React Quiz

What is React primarily used for?

• Backend development

• Mobile development

• Building user interfaces

• Database management

Who developed React?

• Google

• Facebook

• Microsoft

• Twitter

What is a component in React?

• A CSS class

• A JavaScript function or class that returns JSX

• A database model

• A backend route

What does JSX stand for?

• Java Syntax Extension

• JavaScript XML

• JSON Syntax

• Java Standard X

Which hook is used to manage state in functional components?

• useHook

• useComponent

• useState

• useReducer

Which hook is used for side effects in React?

• useSideEffect

• useAction

• useEffect

• useCallback

What is the default file extension for a React component file?

• .jsx

• .html

• .js

• .react

Which method is used to render elements in React?

• ReactDOM.create()

• ReactDOM.render()

• React.renderComponent()

• React.attach()

What is the purpose of props in React?

• To store data in backend

• To handle routing

• To pass data to components

• To fetch data

Which keyword is used to create a functional component?

• class

• def

• function

• component