# Configuration File setting1=value1 setting2=value2 setting1=value1 import React from 'react'; const App = () => { return
Hello World
; }; const App = () => { return
Hello World
; }; // Some comment // Some comment # Another comment # Another comment Email: user@example.com Email: user@example.com Phone: +1-555-0123 Phone: +1-555-0123 function calculate(x, y) { return x + y; } function calculate(x, y) { return x + y; } Database connection string Database connection string Server: localhost:8080 Server: localhost:8080 https://example.com https://example.com https://example.com/path https://example.com/path Error: Something went wrong Error: Something went wrong Warning: Deprecated feature used Warning: Deprecated feature used Item 1 Item 2 Item 1 Item 3 Item 2 Item 4 Item 1 const API_KEY = "abc123"; const API_KEY = "abc123"; const SECRET = "xyz789"; const SECRET = "xyz789"; TODO: Fix this bug TODO: Fix this bug FIXME: Refactor this code FIXME: Refactor this code SELECT * FROM users WHERE id = 1; SELECT * FROM users WHERE id = 1; UPDATE products SET price = 100; UPDATE products SET price = 100; User logged in at 10:00 AM User logged in at 10:00 AM User logged out at 5:00 PM User logged out at 5:00 PM /* CSS Comment */ /* CSS Comment */