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React Interview

Authored by Talha Khan

Computers

Professional Development

React Interview
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93 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is React?

A library for handling HTTP requests

A library for building user interfaces

A database management system

A CSS preprocessor

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are components in React?

Reusable UI elements

The logic part of React

Database structures

React's core library code

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is JSX?

JavaScript extension

HTML preprocessor

XML-like syntax to write React components

JavaScript compiler

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the difference between functional and class components?

Functional components are stateful

Functional components are stateless

Class components are only for styling

Class components can't manage state

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you pass data to components in React?

Through props

Through events

Through context

Directly by DOM manipulation

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the correct syntax for using a prop in a functional component?

this.props.name

props.name

{props}.name

props().name

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the use of `useState` in React?

To manage component lifecycle

To manage component state in functional components

To bind event handlers

To handle API requests

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