React enables you to build components that can be reused in many different areas of your application. Components are modular and contain logic and controls that can be reused throughout your app. You can nest child components within parent components. This allows you to keep your application modular and debug errors easier. React also supports server-side rendering, making it ideal for building mobile applications.

React uses virtual DOM to speed up updates. This means that instead of having the entire page reload, React only changes the sections that need to be modified. To do this, it uses a copy of the DOM in memory called the virtual DOM. React then compares this copy to the actual DOM.

React provides state-of-the-art functionality and is easy to learn. It also enables developers to create sophisticated UI interactions and communicate with the server in record time. The React team’s next release is scheduled for 2020. It’s important to note that React’s documentation is not exhaustive. It is still evolving.

When you create a React component, you must make sure that it is ready for user interaction. This is accomplished by using the setState() method. This method enables you to update the state of your component with any updates you make to it. For example, if you add a subscribe button to your site, you will need to change the message displayed by the button. With this technique, you can use the changeMessage method to update the message and the sub to change the values.