A minimal D3 example demonstrates how to load D3 v5 via UNPKG and use ES6 module imports in VizHub. The code imports `select` from the `d3` package and a local `message` constant from `myMessage.js`, then uses `select('#message').text(message)` to display “Hello VizHub!” in a styled div. The example also includes a regex literal and variable assignment, though these have no visible effect. It shows the basic structure of importing dependencies and local modules within this framework.