React is a flexible and declarative JavaScript library that is used for building interfaces. It allows us to create reusable UI components which are used to develop powerful interactive applications. When we design the views in our applications, ReactJS will render the right components when your data changes. It is used in various social media sites like Facebook and Instagram due to its reusable UI components. React has already hit the point of the mainstream in big enterprise solution companies. Our team of IT professionals makes the use of ReactJS to build big apps and implement the consistent look of the whole project. With ReactJS you can select individual components and examine their current properties and state. Each component has its own logic and controls of rendering and it depends on you where you want to use it.