Loading Data with React & D3

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Loading Data with React & D3

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Last edited Nov 27, 2022

Created on Jun 19, 2022

This example demonstrates how to load and summarize a CSV dataset asynchronously in a React application using D3’s `csv` method. It displays a plain-text readout showing the dataset’s size in kilobytes, row count, and column count. The React `useEffect` hook triggers the data fetch, while `useState` stores the resulting parsed data. The `message` function formats the summary using `d3.csvFormat` to calculate byte length, and React renders either a “loading” placeholder or the final statistics. The data comes from a remote gist containing CSS named colors.

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