πŸš— Top 25 React Interview Questions and Answers (2025) βœ‹

✈️ React is one of the most popular JavaScript libraries for creating user interfaces, particularly for single-page apps. πŸš€

The Expert Developer
6 min readJan 3, 2025

Introduction:

It enables developers to design reusable components and effectively manage the dynamic behaviour of web applications. In React, a good understanding of its key ideas is required to ace technical interviews. This blog will cover the top 25 React interview questions and answers, providing a full explanation of the fundamental and advanced subjects in React, along with code samples to help you understand.

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1. What is React?

Answer: React is an open-source JavaScript library used to build user interfaces, especially for single-page applications. It allows developers to create reusable UI components.

import React from 'react';
function App() {
return <h1>Hello, React!</h1>;
}
export default App;

2. What is JSX?

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The Expert Developer
The Expert Developer

Written by The Expert Developer

React Native, React Js, Android, IOS, Firebase, Javascript etc

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