React uses a component-based architecture that separates components into distinct groups. These components each have a set of properties and functions, and data flows from one component to the next. The “App” component is the top-level component. One of the main concepts in React is state, which is an object with observable properties. This state can change as the user interacts with the user interface.

One of the main benefits of React is its ability to reuse components. This means that developers can reuse code and avoid duplicating code for the same feature. Another advantage is that developers can make changes to a component without affecting other parts of the application. Moreover, React’s ability to reuse components makes programming easier.

React Native is a JavaScript library that can be used to develop mobile apps. Its features include support for front-end and server-side functionality. This allows developers to create a user interface without the need to learn the native platform’s language. The React Native framework also preserves the downward data flow in the code, which makes UI development smooth and easy. However, React Native inherits the disadvantages of ReactJS. React Native is relatively new and has a small community.

Facebook was looking for a better way to create a user interface. With its massive user base, the social network wanted to offer a richer experience. The company turned to Jordan Walke to create React, an open-source library that streamlines the development process and provides a structured, organized way to build dynamic and interactive interfaces. Facebook’s newsfeed was the first application to use React, and the project soon spread throughout the JavaScript ecosystem.