Hello D3 Version 6
This example demonstrates the simplest possible use of D3 version 6 to display a single text value from a JavaScript object. The code creates a dataset with string keys and values, then uses `Object.keys()` to access the second key, “DevOps,” and writes it into the page’s DOM via `textContent`. The visualization shows that plain text output in a large font, styled with inline CSS. It relies on the D3 v6 library loaded from a CDN, with a bundled `index.js` and static `index.html`, offering a minimal starting point for learning D3’s API.