This example demonstrates the use of native JavaScript Promises within a D3.js v5 visualization. It logs a message to the console and returns a Promise that resolves, showcasing asynchronous control flow alongside a simple HTML page. The code loads D3 from UNPKG, uses an ES6 module for a text message, and renders the message "Hello VizHub!" in large centered text via CSS styling. The visualization highlights how Promises integrate with D3’s event-driven environment.