If you are developing a web application, ReactJS is a great choice. It is scalable and performs well in large programs. It also has better performance than other JavaScript languages. React is also easy to learn, and you can quickly get started. Before you start using React, however, you should have some HTML and CSS knowledge.

One example of a real-life application of React is the Uber Eats mobile application. This app brings restaurants and clients together in one place. When developing the app, the developers ran into a number of challenges, and they decided to use React Native as a solution. This approach has helped Uber Eats scale.

One of the key features of React is its ability to build reusable components. This allows developers to break up user interfaces into smaller bits. Each component is a JavaScript function that returns a piece of UI for the screen (more information). Each component has its own state instance that lets developers manage its internal state.

React also supports client-side routing. This means that the whole page doesn’t need to be reloaded for changes to take place. It only reloads the portions that require changes.