If Facebook has created it, it’s ought to be famous!!
Yes, the invention of a software developer, Jordan Walke, working at Facebook, which took the world by storm, React.js is one of the most popular and enjoyable web frontend frameworks to work upon. Not only Facebook, companies like Yahoo, BBC, Instagram, Netflix, PayPal and many others also use it. More than a framework, it is an open source library based on JavaScript, used to develop feature-rich web applications efficiently and fast with the minimum coding required. It is ideal for large single page web applications, that uses data and allows changes in them, without any reloading required.
Normally, developers working with frameworks have to write a lot of coding for the development of web applications which consumes a lot of time and is prone to mistakes. With the help of React.js, there is already a library present with the codes, and moreover, it makes use of single components, where the developer can break down the difficult UI components into individual ones, which ultimately speeds up the process. It also allows creation of engaging User Interfaces (UI) which are a major part of any web app.
It is not only famous because Facebook created it, but there are many specialties which has made it stand out of the crowd.