This example demonstrates how to load and parse CSV data in a React application using D3’s built-in `d3.csv` method. It displays a summary of the dataset, including its size in kilobytes, row count, and column count, in a `<pre>` element. The code fetches a remote CSV file of named CSS colors from a GitHub gist, then uses `d3.csvFormat` to calculate the data’s byte size and `data.columns` to determine the number of columns. The visualization highlights asynchronous data loading with promise-based handling in D3 v5.