What is JSX?

JSX stands for **JavaScript XML** and is a syntax extension for JavaScript commonly used with React. It allows you to write HTML-like code directly within JavaScript, making it easier to describe the UI structure in a way that closely resembles the final output in the browser. In React, JSX lets you create React elements using a syntax that looks like HTML tags, for example: ```jsx const element = Hello, world!; ``` Under the hood, this JSX code is compiled into plain JavaScript calls to `React.createElement()`, which returns React elements that React can render to the DOM. This compilation step is handled by tools like Babel. Using JSX improves code readability and maintainability by allowing developers to visualize the UI structure directly within the JavaScript code. It also supports embedding JavaScript expressions within curly braces `{}`, enabling dynamic content, like so: ```jsx const name = 'Alice'; const element = Hello, {name}!; ``` In summary, JSX is a powerful and expressive way to describe your UI in React applications, combining the familiarity of HTML with the full power of JavaScript.