Вариант 1: С нумерацией

JavaScript

 1const express = require('express'); 2const app = express(); 3const port = 3000; 4 5app.get('/', (req, res) => { 6  res.send('Hello World!'); 7}); 8 9app.listen(port, () => {10  console.log(`Server running on port {port}`);11});1213// Middleware example14app.use((req, res, next) => {15  console.log('Request URL:', req.url);16  next();17});1819// Export for testing20module.exports = app;

Вариант 1: Без нумерации

Python

def greet(name):
    return f"Hello, {name}!"

# Call the function
print(greet("World"))

Вариант 3: С нумерацией

JavaScript

 1 2 3 4 5 6 7 8 91011121314151617181920
const express = require('express');
const app = express();
const port = 3000;

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

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

// Middleware example
app.use((req, res, next) => {
  console.log('Request URL:', req.url);
  next();
});

// Export for testing
module.exports = app;

Вариант 3: Без нумерации

Python

def greet(name):
    return f"Hello, {name}!"

# Call the function
print(greet("World"))