Hello World
This example demonstrates the simplest possible D3 setup, rendering the text “Hello D3 version 7” directly into the page body. It uses the `select` function from D3’s `d3` module to target the `body` element and calls `.text()` to set its content. The accompanying HTML file provides a minimal skeleton, while the JavaScript imports only the needed `select` API, showing how to begin a project with D3 version 6 or 7. No data or complex rendering is involved beyond this basic insertion.