This book is your complete roadmap to crushing React.js 19 interviews and rising above the competition.
Based on 350+ real-world front-end interviews, it delivers the most relevant technical questions asked by top companies—along with clear, practical answers that help you build confidence, deepen your React.js knowledge, and prove your skills where it matters most.
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What’s Inside
- Core React Concepts – JSX, Virtual DOM, props, state, and component structure (React.js v19)
- Hooks Deep Dive – useState, useEffect, useReducer, useRef, useMemo, and more (React.js v19)
- Performance Optimization – Avoid re-renders, lazy loading, memoization, and profiling (React.js v19)
- Component Design & Reusability – HOCs, render props, children, and Fragments (React.js v19)
- Forms & Event Handling – Controlled/uncontrolled components, validation, synthetic events (React.js v19)
- Styling Techniques – CSS Modules, Tailwind CSS (v4.0), clsx (v2.1), and scalable styling strategies
- Routing – Nested routes, useParams, useSearchParams, and route protection (React Router v7.4)
- Error Handling – Error boundaries, debugging practices, graceful fallbacks (React.js v19)
- Global State Management – Context API (React 19), Redux Toolkit (v2.6), Zustand (v5.0), and best practices
Who This Book Is For ?
- Beginner Developers – If you're new to React.js, this book will build a strong foundation, helping you understand the core concepts and prepare for entry-level technical interviews.
- Intermediate Developers – If you already have experience with React.js, this book will deepen your knowledge, reinforce best practices, and prepare you for mid-level interviews.
