React is primarily a frontend library that is used for building user interfaces and managing the state of the application on the client-side. React provides a way to create reusable components that can be composed together to create complex UIs, and it uses a virtual DOM to efficiently update the UI based on changes in the application state.
While React is designed to be used on the frontend, it can be used in conjunction with other technologies to build full-stack web applications. For example, React can be used with Node.js on the backend to create a full-stack JavaScript application. In this scenario, Node.js would be used to handle server-side logic and data management, while React would be used to handle the presentation and client-side interaction.
It’s important to note that while React can be used on the backend with Node.js or other server-side technologies, it is not a server-side framework and does not provide the same level of functionality as a full-fledged backend framework like Express or Ruby on Rails. React is primarily focused on the client-side of web development and is best used in conjunction with other technologies to create full-stack applications.
In summary, React is primarily a frontend library that is used for building user interfaces and managing the state of the application on the client-side. While React can be used on the backend with Node.js or other server-side technologies, it is not a full-fledged backend framework and is best used in conjunction with other technologies to create full-stack web applications.