load data with d3 and update with react

Loading data with React & D3

A React and D3 example demonstrates asynchronous data loading by fetching a CSV of CSS named colors and displaying a summary message with file size, row count, and column count. The application uses React's `useState` and `useEffect` hooks to manage the data-fetching lifecycle, calling `d3.csv()` to parse the remote CSV file. Once loaded, the data is transformed through `d3.csvFormat` and rendered as SVG text. The visualization also includes a separate smiling face composed of reusable React components—`BackgroundCircle`, `Eyes`, and `Mouth`—where the mouth is drawn using D3's `arc()` path generator with specified angle parameters.

Mmiklud

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

load data d3 react

This example demonstrates how to load CSV data from a remote URL using D3’s `csv` method and display a loading status in a React component. The code fetches a dataset of CSS named colors and updates the UI text from “loading” to “loaded” once the data arrives. The visualization renders SVG elements—a yellow face with eyes and a mouth—built from reusable React components like `Face`, `BackgroundCircle`, and `Mouth`, which uses `d3.arc` to draw the mouth path. The app relies on React 17 and D3 v7.

MMalcolm Mead

Loading Data with React and D3

This example demonstrates how to load and display CSV data within a React application using D3. It shows a simple text message indicating whether the data has loaded successfully, displaying the row count once fetched. The code uses React hooks like `useState` and `useEffect` to manage state and trigger the data-loading process, while the `d3.csv` method retrieves data from a GitHub Gist URL. The visualization initially renders a static SVG smiley face in the HTML, but the React component dynamically updates the displayed message based on the asynchronous data fetch.

Nnicklaus-roy

Loading Data with React & D3

This example demonstrates how to load external data in a React application using D3 utilities, displaying a simple status message that changes from "loading" to "loaded" once the data arrives. The code uses React’s `useState` hook to manage the data state and `d3.csv` to fetch a CSV file from a GitHub gist containing CSS color names. After the asynchronous data load completes, the component updates its state, triggering a re-render. The visualization itself is minimal, focusing on the data-loading pattern rather than complex rendering, with SVG coordinates briefly commented in the HTML but not actively used.

PPakapone Supavarn

Loading with React & D3

This example demonstrates how React handles asynchronous data loading with D3. The App component initializes state with null, then uses useEffect to fetch a CSS named colors CSV from a GitHub gist via d3.csv, updating state once the data arrives. While loading, the screen displays the text "loading"; afterward, it renders a message summarizing the dataset’s size in kilobytes, row count, and column count, computed using d3.csvFormat and the data’s columns property. The visualization uses React’s useState and useEffect hooks with D3’s csv parser, rendering output as SVG-backed React elements.

Kkosakase

Loading Data with React & D3

This example demonstrates loading a remote CSV dataset using D3’s `csv` method within a React component, displaying the data’s size, row count, and column count as text. The `useState` and `useEffect` hooks manage the asynchronous data loading, rendering a “loading...” message until the promise resolves. The application uses React 16.9, D3 v6, and SVG-free output, presenting the metrics in a large `<pre>` element. The data come from a GitHub gist containing CSS named colors.

Ddev-ignacio-h

Loading data with react and d3

This example demonstrates how to load and display CSV data in a React component using D3’s `csv` function. It fetches a remote dataset of CSS named colors from a GitHub gist and tracks the loading state with React’s `useState` hook. Once the data arrives, the component renders a simple status message indicating whether the data is “Loaded” or “loading.” The code combines React 16.9 with D3 v3, and uses `ReactDOM.render` to mount the app into the HTML page.

AAnkit-Ian-53787