Loading and Parsing CSV without fetch async and await

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Loading and Parsing CSV without fetch async and await

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Last edited Apr 8, 2021

Created on Apr 8, 2021

This example demonstrates a minimal workflow for loading and parsing a CSV file in D3 v6 without using fetch, async, or await. It displays the file size in kilobytes, row count, and column count inside a large <pre> element. The code calls d3.csv() with a URL pointing to a CSS named colors dataset hosted on GitHub Gist, then chains a .then() callback to compute the summary metrics using d3.csvFormat() and the parsed data array. The approach avoids explicit asynchronous syntax while relying on D3’s built-in promise handling.

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Less verbose way to do the loading and parsing of the csv file

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