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React has two main types of components: class-based components and functional components. Each component is declared using a function. The former is the most common, and has hooks to deal with state management and other problems common to React code. Class-based components also use lifecycle methods to execute code at certain points. The latter has a feature called shouldComponentUpdate(), which prevents the need to re-render a component when the state of the parent component changes.
Netflix first adopted ReactJS in 2015, using ReactJS in combination with the Gibbon rendering layer. They chose React because of its declarative approach and one-way ticket data flow model. Later on, Airbnb chose React because of its component reusability and easy iteration. The library is used in the internal structures of Airbnb, a popular online hotel and car rental service. If you’re looking for a framework that can help you build your next great web application, consider ReactJS.continue reading