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Last edited Apr 7, 2021

Created on Apr 7, 2021

This example loads a named CSS color dataset from a remote CSV file and displays a summary of its size, row count, and column count. The React component uses the `useState` hook to store the data after fetching it asynchronously with d3.csv. The message is computed by formatting the CSV data back into a string with `d3.csvFormat`, measuring its length, and counting rows and columns. The interface shows only the text summary, with no graphic or interactive element beyond the loading state.

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A program that follows your mouse with a circle.

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