React-Js is an open-source JavaScript library that is used to develop user interfaces (UIs). It was developed by Facebook and is used to create interactive and dynamic web applications. It’s been around since 2013, and it has quickly become one of the most popular web development tools. It is used for creating reusable UI components for web applications, making it a popular choice for developing web applications. React-Js is especially powerful for creating complex user interfaces such as mobile and hybrid apps, PWAs, and SPAs. Here are some reasons why React-Js is a great choice for web development: