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React Tutorial
What is React?
React is a JavaScript library used for building user interfaces (UI).
It is mainly used for creating Single-Page Applications (SPA).
React allows us to create reusable UI components for better code organization.
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React Example (Hello World)
Here is a simple React component example:
import { createRoot } from 'react-dom/client';
function Hello() {
return (
Hello World!
);
}
createRoot(document.getElementById('root')).render(
);
Warning: To run React code in the browser, you need a bundler like Vite, Webpack, or Create React App. You cannot directly import JSX in a plain HTML file.
HTML File Example
Here is a basic HTML structure to use React:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>React App</title> </head> <body> <div id="root"></div> <script type="module" src="main.jsx"></script> </body> </html>
Tip: Make React components small and reusable. This keeps your code clean and maintainable.
How to Learn React
- Start by learning Components.
- Understand State and Props.
- Practice event handling and forms.
- Learn React Hooks like useState and useEffect.
Warning: Modern React features like JSX will not run directly in a browser without a bundler. Always use a module bundler or toolchain.