Loading and Parsing CSV Data

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Loading and Parsing CSV Data

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Last edited Feb 22, 2023

Created on Feb 21, 2023

This example demonstrates the initial steps of working with tabular data in D3 by fetching a CSV file and parsing it into JavaScript objects. It displays a summary message showing the file size in kilobytes, the number of rows, and the number of columns. The code uses the native `fetch` API to retrieve the remote CSV from a GitHub gist, followed by `d3.csvParse` to convert the raw text into an array of objects. The resulting counts are rendered into a `<pre>` element with large font styling, highlighting the parsed data’s structure without showing its contents.

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A program that loads and parses CSV data.

MIT Licensed

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