What is React?
React: React was designed around the idea that your UI should automatically react when your application's state changes . Instead of manually manipulating the DOM (like in plain JavaScript or jQuery), React lets you declare what the UI should look like , and it reacts to updates. It’s called React because the UI reacts to data changes automatically. React was created by Jordan Walke , a software engineer at Facebook (now Meta), around 2011–2013 . It was first used internally at Facebook for their News Feed. Later, it was open-sourced in May 2013 under the name React (or React.js ) React is a Javascript UI library for developing client based applications (browsers).