React.js is one of the most popular JavaScript libraries. The 2019 "State of JavaScript" survey puts React as the front-end framework of choice, with 72% of responders stating that they have used it and would use again.
With its elegant programming style, rich package ecosystem and good documentation, React has found its way into powering the applications of large enterprises. Specifically, the developer survey found that 18% of responders who are using React work for companies with over 1000 employees.