This example demonstrates how to asynchronously load a CSV file from a remote URL using D3’s `csv` method within a React component’s `useEffect` hook. While the data is being fetched, the interface displays a "Loading..." message; once loaded, a summary of the dataset—its size in kilobytes, column count, and row count—is rendered as plain text using the `d3.csvFormat` method. The React state hook `useState` stores the fetched data, and the `message` utility formats the output into a readable string.