React Quiz

React Quiz

Professional Development

19 Qs

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React Quiz

React Quiz

Assessment

Quiz

Other

Professional Development

Practice Problem

Medium

Created by

Shumen Mehdieva

Used 1+ times

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19 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is React?

A library for building user interfaces

A programming language

A database management system

A CSS framework

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is JSX in React?

A syntax extension for JavaScript

A new programming language

A tool for debugging React apps

A CSS preprocessor

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which method is used to render a React component to the DOM?

`React.renderComponent`

`ReactDOM.render`

`React.componentRender`

`ReactDOM.create`

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a React component?

A function or class that returns UI elements

A database model

A backend API

A CSS module

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the virtual DOM?

A lightweight representation of the real DOM

A feature of browsers to optimize rendering

A server-side rendering tool

None of the above

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the `useState` hook do?

Manages lifecycle methods

Provides access to the Redux store

Adds state management to functional components

Handles side effects

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does `useState` return?

A value and a function to update it

A promise and a callback

A single value only

An array of all state variables

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