React Basics must to be known

ReactJS is a simple, feature rich, component based JavaScript UI library. It can be used to develop small applications as well as big, complex applications. ReactJS provides minimal and solid feature set to kick-start a web application. React community compliments React library by providing large set of ready-made components to develop web application in a record time. React community also provides advanced concept like state management, routing, etc., on top of the React library. React versionsThe initial version, 0.3.0 of React is released on May, 2013 and the latest version, 17.0.1 is released on October, 2020. The major version introduces breaking changes and the minor version introduces new feature without breaking the existing functionality. Bug fixes are released as and when necessary. React follows the Sematic Versioning (semver) principle. FeaturesThe salient features of React library are as follows −Solid base architectureExtensible architectureComponent based libraryJSX based design architectureDeclarative UI libraryBenefitsFew benefits of using React library are as follows −Easy to learnEasy to adept in modern as well as legacy applicationFaster way to code a functionalityAvailability of large number of ready-made componentLarge and active communityApplicationsFew popular websites powered by React library are listed below −Facebook, popular social media applicationInstagram, popular photo sharing applicationNetflix, popular media streaming applicationCode Academy, popular online training applicationReddit, popular content sharing application