This example demonstrates a minimal VizHub setup that loads D3 from a CDN and uses ES6 module imports to display a simple message. The page renders the text “Hello VizHub!” centered in a large font via the `#message` div. The code imports `select` from D3 and a custom `message` constant from a local `myMessage.js` module, using D3’s `select` API to set the text content. A regular expression and a number are also declared but unused, showing basic JavaScript syntax without affecting the output.