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Last edited Sep 18, 2023

Created on Sep 18, 2023

This example demonstrates asynchronous data loading with D3 v7 by fetching and parsing the Iris Dataset from a local CSV file. It shows the raw parsed data as a JSON-formatted text preview inside a `<pre>` element, updating the view once the data arrives. The visualization uses `fetch()` to request `data.csv`, converts the response text with `d3.csvParse`, and coerces numeric columns to numbers before storing them in state. The `viz.js` module manages a loading state, initially rendering nothing until the data is processed, then displaying the full dataset structure.

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Loading a CSV file, the Iris Dataset.

MIT Licensed

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