Loading and parsing CSV Data

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Loading and parsing CSV Data

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Last edited Oct 27, 2021

Created on Oct 27, 2021

This example demonstrates how to load and parse a CSV file using D3.js, displaying a summary of the data’s key metrics: size in kilobytes, row count, and column count, rendered inside an HTML `<pre>` element. The code fetches a remote CSV containing CSS named colors via `d3.csv`, which parses the file into an array of objects. Using the parsed result, it calls `d3.csvFormat` to compute the formatted string length, and accesses the `data.length` and `data.columns.length` properties. The page relies on a large font size for the output message, making the stats highly visible.

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