JSX

Detailed Explanation

JSX is a syntax extension that lets you write HTML-like code inside JavaScript. It looks like HTML but lives in your JS files. React uses JSX to describe what the UI should look like. Behind the scenes, JSX compiles to regular JavaScript Function calls.

JSX combines structure and logic in one place. You can embed variables, use conditionals, map over arrays, and apply CSS classes — all inside your components. JSX accepts props as attributes and state as dynamic values.

JSX takes some getting used to — strings need curly braces, class becomes className, and every element needs a closing tag. But once you learn it, JSX makes building UIs faster and more intuitive.