I completed React - The Ultimate Guide, a comprehensive course that provided in-depth knowledge of React and its ecosystem. Through this course, I mastered essential concepts, including React Hooks (like useState and useEffect), React Router for navigation, and Next.js for server-side rendering and optimized page performance. This training equipped me with a strong grasp of component lifecycle management, state handling, and best practices for building high-performance React applications, ensuring a robust foundation for creating scalable and interactive user interfaces.