A key feature of React is the composition of components. Components written by different people should work well together. It's important to us that you can add functionality to a component without causing a wave of changes throughout the code.For example, it should be possible to introduce some kind of internal state into a component without changing the components that depend on it. It should also be possible to add initialization and destruction code to any component as needed.There is nothing "wrong" with using state or lifecycle methods in components. Like any powerful feature, they should be used in moderation. Components are often described as "just functions," but, they have to be something more to be useful. Components in React describe behavior that can be composed. This idea extends to rendering, lifecycle, and state, among others. React is one of the most popular JavaScript frameworks in the world today. It is known for its pluses in creating native apps for Android and iOS platforms. React Native has its origins in React; it's a JavaScript library created by Facebook for mobile app interface development. React can easily combine with JavaScript to create apps with the same features as native apps. Because the code written in React Native is available for simultaneous use, it is a great platform for developing cross-platform applications https://devoxsoftware.com/technology/react-js-development-services/ . React Native provides developers with an inexpensive way to create cross-platform applications using React Native. Instead of creating two different apps for Android and iOS, a developer can use the same code for both platforms. This means reduced development costs.