This example displays the dimensions of a loaded CSV dataset, showing row and column counts alongside file size in kilobytes. It uses a React functional component with hooks (`useState`, `useEffect`) to fetch the data asynchronously via `d3.csv`, then formats the summary message with `d3.csvFormat`. The visualization renders as plain text within a `<pre>` element, with the React app bootstrapped through `ReactDOM.render` and D3 v6 included via CDN.