n the fast-evolving world of web development, ReactJS has emerged as one of the most crucial JavaScript libraries for frontend developers. Since its release by Facebook in 2013, React has revolutionized how user interfaces are built with its component-based architecture, Virtual DOM for performance optimization, and rich ecosystem of tools and resources. Whether you’re building web or mobile applications, ReactJS provides developers with a powerful, scalable, and future-proof solution that’s widely adopted by tech giants like Facebook, Netflix, and Airbnb