This example displays a plain-text summary of a CSV dataset loaded from a GitHub gist, showing its size in kilobytes, row count, and column count. It demonstrates both the primary approach using `d3.csv` with a Promise, and commented-out alternatives using `fetch` with async/await plus `d3.csvParse`. The React state mentioned in the README is not visible in this code, which instead directly updates the DOM via `textContent`. The large `pre` element presents the concise statistics.