Top 25+ Must-Know reactjs MCQ Questions for the Year 2024

Reactjs MCQ Questions for 2024: A comprehensive quiz to test your knowledge of React.js

It’s the year 2024, and React.js continues to thrive. There are plenty of competitors in the market for React.js, but React.js still stands out from the rest. Its main competitors include AngularJS, VueJS and Svelte.

React.js remains a leading choice for developers due to its component-based architecture, virtual DOM for efficient rendering, and a strong community that contributes to a rich ecosystem of libraries and tools.

Therefore, in this blog, we present 25+ top-rated Reactjs MCQ questions to assess your knowledge of React.js. So, let’s jump right in and explore these questions.

Before Starting Test

Before starting the quiz, you should have a basic understanding of HTML, JavaScript, and especially React.js, as React.js relies heavily on JavaScript. Please note that there is no negative marking in this quiz.

The purpose of this quiz is solely to assess and test your knowledge of React.js. Feel free to answer the questions to the best of your ability, and use it as an opportunity to gauge your understanding without any concerns about penalties for incorrect answers.

Difficulty Level

In this series of multiple-choice questions, we’ve included a range of questions designed to suit all levels of expertise—whether you are just starting with React, have some experience, or are already an advanced developer. The questions cover various aspects of React, from fundamental concepts to more complex topics, ensuring that there is valuable content for everyone.

Whether you’re looking to test your basic knowledge or challenge your advanced skills, this quiz provides a comprehensive opportunity to gauge your understanding of React.js.

Also Read : Is MERN Stack Development Dead ?

Why should take this challenge ?

You should take this challenge if you want to assess your React.js knowledge. This quiz covers a wide range of topics, including concepts from the latest version, React 19, to ensure a comprehensive evaluation.

Whether you’re a beginner or an experienced developer, you’ll find questions that span various levels of expertise. Use this opportunity to test your understanding of both fundamental and advanced React.js features.

Let’s Check Your React Knowledge

How do you handle an event in React?

What is the purpose of React Server Components?

What does the useContext hook do?

Which hook would you use to memoize a function in React?

What does React.lazy allow you to do in React?

What is the main advantage of using ReactDOM.createRoot in React 18?

What is the purpose of keys in React lists?

Which of the following can be used for conditional rendering in React?

What new feature does React 18 introduce to improve rendering performance?

What is the primary purpose of React?

Which company developed React?

How does React 18's useTransition hook help with performance?

How can you apply inline styles to a React component?

Which hook is used to perform side effects in a functional component?

How many types of CSS can you use in a React application?

What is the purpose of state in React?

Which of the following is used to handle form input in React?

What is JSX in React?

Which React hook is used for handling asynchronous data fetching in React 18?

How can you apply a CSS class from an external stylesheet to a React component?

Which hook is commonly used in React 18 for managing server-side rendering?

What is the default state of a newly created React component?

What is the purpose of the export default statement in a React component file?

What is the purpose of CSS modules in a React project?

Which method is used to change state in a class component?

What is the purpose of React.StrictMode in React 18?

Which React feature can be used to apply conditional styles based on component state?

Hello Readers !

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Hello! I’m Ravi Rathore, an enthusiastic front-end developer with over 4 years of experience and an SEO expert from Mumbai, India. I provide personalized training in React.js and SEO to help you succeed in web development. If you want to build fantastic web apps or improve your site’s visibility on search engines, I’m here to help.

 

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