This example demonstrates loading a CSV dataset of CSS named colors and displaying summary statistics about its size. React manages the application state, initially showing “Loading…” and then rendering a message with the file’s kilobyte size, row count, and column count once the data arrives. The code uses D3’s `csv` function to fetch and parse the data, `d3.csvFormat` to measure its length, and React Hooks like `useState` and `useEffect` for state management. The visualization is purely text-based, rendered inside a `<pre>` element with large font styling.