This example demonstrates a React component that loads a CSV file of CSS named colors using D3’s `csv` utility, stores the result in React state via `useState` and `useEffect`, and displays a short summary of the dataset. The summary shows the file size in kilobytes, the row count, and the column count, using `d3.csvFormat` and `message.js` to compute the values. While the data is loading, the interface shows “Loading…” instead of the statistics. The code combines React 16.9, D3 v7, and a remote gist URL as the data source.