Fork of Loading Data

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Fork of Loading Data

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Last edited Aug 31, 2025

Created on Aug 31, 2025

This example demonstrates asynchronous data loading in a D3.js visualization. The code fetches a CSV file containing the classic Iris flower dataset, parses it, and displays the raw JSON-formatted data prominently as the primary output. The visualization progresses through distinct states—starting with undefined, transitioning to a "LOADING" message, and finally populating with the parsed array of objects. It uses D3's `select`, `join`, `csvParse`, and a state management pattern with `setState` to control the rendering and handle the fetch-and-parse pipeline.

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