What Is React & JSX, How To Render JSX

React is a well-known, modular, flexible, and scalable front-end framework. It enables developers to build reusable UI components and has gained popularity in recent years.

JSX is a syntax extension for JavaScript that lets developers treat HTML as expressions. This feature enables developers to create UI elements with a syntax similar to HTML. JSX elements can be stored in variables, objects, and arrays.

JSX elements can have attributes and can be nested within one another, similar to HTML. It is essential to note that a JSX expression must have only one outer element.

Developers can use the createRoot() function from react-dom/client to create a React root at a specific DOM element. The render() method of a React root can be used to render JSX on the screen. With the virtual DOM, React updates only the DOM elements that have changed, making the rendering process efficient.