React
Updated: 10/07/2019 by Computer Hope
Also known as React.js or ReactJS, React is a JavaScript library used to create UIs (user interfaces) for web applications. It was created and open-sourced by Facebook and is actively maintained by thousands of contributors. It was released in May 2013.
React is very good at creating applications that display data as it changes, without reloading the page. Similarly, developers can preview React applications in real-time as they modify the code.