🚀 Top 10 React JS Interview Questions and Answers
📚 Download the Complete React JS Interview Questions & Answers Guide 📥 Unlock Complete PDF 📜 Scroll Down To Download PDF Question 1: What Is React JS? Introduction React JS is a popular open-source JavaScript library used for building fast, interactive, and reusable user interfaces, especially for Single Page Applications (SPAs). React was developed by Facebook (Meta) and is widely used by companies such as Netflix, Instagram, Airbnb, and WhatsApp. React follows a component-based architecture, making applications easier to develop and maintain. Why React JS Is Important React helps developers: Build Dynamic User Interfaces Create Reusable Components Improve Application Performance Develop Single Page Applications Manage Complex UI Efficiently Today, React is one of the most in-demand frontend technologies. React JS Architecture User Interface | v React Components | v Virtual DOM | v Real DOM | ...