Rendering

React follows a declarative approach to rendering components, which means that developers specify what a component should look like, and React takes care of rendering the component to the screen. This is in contrast to an imperative approach, where developers would write code to manually manipulate the DOM (Document Object Model) to update the UI.

The virtual DOM (VDOM) is an important aspect of how React works. It is a lightweight in-memory representation of the DOM (Document Object Model), and it is used to optimize the rendering of components in a React application.

This process is known as reconciliation, and it is an important aspect of how React works. By using a declarative approach and a VDOM, React is able to optimize the rendering of components and improve the performance of web applications.

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