TINTIN Loading Data with React & D3

Loading Data with React & D3

This example demonstrates loading a CSV dataset into a React application using D3 utilities, displaying a text summary of the data’s size and structure. It shows how React state manages the asynchronous data-fetching lifecycle, with a loading message shown until the data arrives. The code uses `d3.csv` to fetch the CSS named colors dataset from a GitHub gist, then formats the result with `d3.csvFormat` to compute kilobyte size, row count, and column count. React's `useState` and `useEffect` hooks trigger the fetch and store the parsed data, while the final output renders as SVG text via a `<pre>` element.

BBruno Simoes

Loading Data with React and D3

This example demonstrates how to load and summarize external data in a React application using D3 utilities. It fetches a CSV file containing CSS named colors via `d3.csv`, storing the parsed result in React state with the `useState` and `useEffect` hooks. While the data loads, the interface displays a "Loading" message; once ready, it computes a textual summary using `d3.csvFormat`, showing the dataset’s size in kilobytes, row count, and column count. The visualization renders as SVG but presents only text, highlighting the data-loading workflow rather than graphical output.

FFulvio Vigilante

Loading Data with React and D3

This example shows how React state and D3 utilities work together to load and summarize a dataset of CSS named colors. The application displays a text message reporting the dataset’s size in kilobytes, row count, and column count once the data arrives, or a “Loading…” placeholder before that. The code uses the `useState` and `useEffect` hooks to manage the asynchronous fetch, while `d3.csv` retrieves the data from a GitHub gist URL. React renders the message as SVG text, and `d3.csvFormat` calculates the byte size.

WWilliam Couturiaux

Loading data with React & D3

A React application demonstrates asynchronous data loading with D3, using React state to track whether a CSV dataset is loaded. The app fetches CSS named colors from a GitHub gist via `d3.csv` and stores the parsed result in React's `useState` hook. The interface displays a simple text indicator that changes from "loading" to "loaded" once the data arrives. The example uses React 16.9, D3 v6, and renders only a plain text message rather than any SVG visualization, with the SVG markup present in the HTML file commented out.

TTulioChiodi

Loading Data with React & D3

This example demonstrates how to load a CSV dataset and display its summary statistics as text, using React state to track the data as it loads asynchronously. The `d3.csv` function fetches the CSS named colors dataset from a GitHub gist, and a custom `message` utility calculates and formats the data’s size in kilobytes, row count, and column count. The app renders either a loading message or the summary using React’s `useState` and `useEffect` hooks, with the output displayed in a large monospace `<pre>` element rendered as SVG.

TT.T

TINTIN Loading and Parsing CSV Data

This example demonstrates how to load and parse CSV data using D3.js v5 and React. It fetches a dataset of CSS Named Colors and displays the file size, row count, and column count as large text. The primary approach uses `d3.csv` with a Promise, while alternative commented-out code shows `fetch` with `async`/`await` and `d3.csvParse`. The visualization is minimal, focusing on data loading mechanics rather than graphical representation.

Ppnlinyz

Loading Data with React and D3

This example demonstrates how to load and display CSV data within a React application using D3 utilities. The app fetches a dataset of CSS named colors from a GitHub gist via the `d3.csv` method, storing the result in React state with the `useState` and `useEffect` hooks. Once loaded, a summary message is rendered as large SVG text, showing the file size in kilobytes, row count, and column count using `d3.csvFormat`. While data is loading, the display simply shows the text “loading,” providing a clear visual state transition.

MMichael Bergerson

Loading Data with React & D3

This example demonstrates how React and D3 can work together to load and summarize a CSV dataset. It fetches a list of CSS named colors from a GitHub gist using D3’s `d3.csv` utility, storing the parsed data in React state via the `useState` and `useEffect` hooks. While the data loads, it displays a loading message; once available, it shows the file size in kilobytes, row count, and column count, computed with `d3.csvFormat`. The visualization is minimal—just text in a `<pre>` element—but clearly illustrates the data-loading workflow.

CChristian Potdevin