JSX stands for JavaScript XML. It’s a syntax extension for JavaScript commonly used with React to describe what the UI should look like. JSX allows developers to write HTML-like code inside JavaScript, which is then transformed into regular JavaScript objects (via tools like Babel) that React can render.
Example of JSX:
const element = <h1>Hello, World!</h1>;
This looks like HTML but is actually JSX. Behind the scenes, it gets compiled into:
const element = React.createElement("h1", null, "Hello, World!");
✅ Benefits of JSX:
Readable & Declarative Syntax
Looks similar to HTML, making it easier to visualize the structure of the UI.
Example: <div> <h1>Title</h1> <p>Description</p> </div>Integration of JavaScript Logic
You can directly embed JavaScript expressions inside { }.
Example: const name = "Himanshu"; <h1>Hello, {name}</h1>Component Reusability
JSX makes it easy to compose UI using reusable components.
Example: <Header /> <Content /> <Footer />Type Safety & Error Checking
During compilation, JSX helps catch errors early (like unclosed tags, wrong attributes, etc.).
Boosts Productivity
Easier to write, maintain, and understand compared to manually writing React.createElement() calls.
Rich Ecosystem Support
Supported by modern tools like Babel, Webpack, and TypeScript, making it powerful for real-world applications.
👉 In short, JSX combines the power of JavaScript with the familiarity of HTML, making React development faster, cleaner, and more maintainable.