This example demonstrates the process of loading and summarizing a CSV dataset. It shows a text display that either reports "Loading..." while data is fetched or presents the dataset's size in kilobytes, row count, and column count once loaded. The visualization uses React with hooks like `useState` and `useEffect` to manage state and trigger the asynchronous `d3.csv()` call. The fetched data is formatted using `d3.csvFormat` to calculate its size, with the React component rendering the result as an SVG-based `pre` element.