Web Applications Code Samples

Here are some code samples for web applications. Check out our JavaScript tutorials for more information on web development.

• React Application
  • Create a simple React application using the following code snippet.
  • 

    React Logo

import React from 'react';

function App() {
  return (
    <div>
      <h1>Hello, World!</h1>
    </div>
  );
}

export default App;

• Node.js Server
  • Use Node.js to create a basic server with the following code.
  • 

    Node.js Logo

const http = require('http');

const server = http.createServer((req, res) => {
  res.statusCode = 200;
  res.setHeader('Content-Type', 'text/plain');
  res.end('Hello, World!\n');
});

server.listen(3000, () => {
  console.log('Server running on port 3000');
});

• Express Framework
  • Learn how to use the Express framework to build web applications.
  • 

    Express Logo

const express = require('express');
const app = express();

app.get('/', (req, res) => {
  res.send('Hello, World!');
});

app.listen(3000, () => {
  console.log('Server running on port 3000');
});

For more web application code samples, visit our web development resources.