This example demonstrates how to load and parse CSV data using D3 v5 in a React application. It displays a summary of the CSS Named Colors dataset, showing the file size in kilobytes, row count, and column count. The code uses `d3.csv` to fetch and parse the data asynchronously, then accesses the parsed data’s `length` and `columns` properties. Alternative approaches using `fetch` with `async`/`await` and `d3.csvParse` are also included but commented out.