ReactJS is the only programming language for describing the behavior of elements on a page in a browser: it makes interfaces interactive. In simple words, it 'brings to life' the actions of the buttons in your application or website and is responsible for how your web application will look.

The service simplifies and speeds up the work of an IT specialist when developing a site, due to the fact that it has certain templates, allows you to minimize errors that occur during development, and to compose complex interfaces from small separate pieces of code - 'components'. Its advantages are speed, simplicity, scalability.