Loading data with D3 & React (useEffect)

Loading data with React and D3

This example demonstrates how to load and summarize a CSV dataset using React and D3. The app fetches a list of CSS named colors via `d3.csv` inside a `useEffect` hook, then conditionally renders either a loading message or a text summary. The summary displays the data size in kilobytes, row count, and column count, computed with `d3.csvFormat`. The visualization uses React state and hooks to manage the asynchronous data loading, while the final output is plain text rendered in a `<pre>` element.

AAndrea Picciau

Loading Data with React & D3

This example demonstrates how to load and summarize a remote CSV dataset within a React application, displaying the file size, row count, and column count as text. It uses React's `useEffect` hook to trigger a D3 `csv` request to fetch CSS named colors data from a GitHub gist, then renders the statistics once the data arrives. The implementation relies on React’s state management with `useState`, D3’s `csv` parsing, and a custom `message` module that formats the summary using `d3.csvFormat` and the dataset’s metadata. The visualization presents raw data metrics rather than a graphical chart.

JJakub

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

Loading data with react and d3

This example demonstrates how to load and display a summary of a CSV dataset using React and D3. It fetches the CSS named colors dataset from a GitHub gist via D3’s `csv` utility, stores the result in React state with `useState` and `useEffect`, and renders a formatted message showing the file size in kilobytes, row count, and column count. The visualization shows the loading process in a plain text `<pre>` element, relying on React’s rendering and lifecycle management.

KKaitlyn Boyle

Loading Data with React & D3

This example demonstrates loading and summarizing a CSV dataset in a React application with D3.js. The app uses React state and the `useEffect` hook to fetch CSS named colors from a GitHub gist via D3’s `csv` function, then displays a text summary of the file size, column count, and row count. The UI renders as a large `<pre>` element, initially showing “Loading...” until data arrives. While the code imports `d3.csv`, the actual format and length calculations rely on `d3.csvFormat` and array properties. The visualization is minimal, focusing on data loading rather than graphical output, with no SVG or chart elements present.

JJacual

Loading Data with React

This example demonstrates how to load and summarize a CSV dataset of CSS named colors within a React application. The app uses React’s `useEffect` hook to fetch the remote CSV via `d3.csv`, then displays a short textual summary of the file’s size in kilobytes, row count, and column count using `d3.csvFormat`. The code relies on React 16.9, ReactDOM, and D3 v7.4.4, with the data sourced from a GitHub gist. While the interface is minimal, it clearly illustrates asynchronous data fetching and state management with `useState`.

DDavid Kim

Loading data with react and 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.csv`, stores the parsed result in React state via the `useState` and `useEffect` hooks, and then displays a text summary using `d3.csvFormat` to calculate the file size in kilobytes, along with the row and column counts. While the data loads, the component shows a “Loading...” message. The visualization is minimal, consisting solely of this computed metadata rendered as plain text.

NNordes Ménard-Lamarre

Loading Data with React and D3

This example demonstrates how to load and summarize a CSV dataset asynchronously using React alongside D3. The app fetches CSS named colors from a GitHub gist with D3’s `csv` function, then uses React hooks (`useState`, `useEffect`) to manage the loading state and update the view. Before displaying the data, it computes the file size in kilobytes, row count, and column count using `d3.csvFormat`. While loading, a simple text message appears; afterward, the summary is rendered in a `<pre>` element.

JJing-MS