Loading Data with React and D3

Loading Data with React & D3

This example demonstrates how to load and summarize external CSV data within a React application using D3. The interface displays a text summary of the dataset, including file size in kilobytes, row count, and column count, which updates once the data finishes loading. The code uses React hooks (`useState`, `useEffect`) to manage asynchronous state, fetches data via D3’s `csv` function from a GitHub gist containing CSS named colors, and formats the output with `d3.csvFormat`. A loading message appears while the request is pending, and the result is rendered inside a `<pre>` element.

GGonzalo Alarcón Usui

Loading data with react and d3

This example shows how React and D3 can be combined to load and summarize a CSV dataset. The React component uses the `useState` and `useEffect` hooks to fetch data asynchronously via `d3.csv` from a GitHub-hosted file of CSS named colors. Once loaded, the component displays the file size in kilobytes, row count, and column count using `d3.csvFormat` to calculate the byte length. While the page loads, it shows a "Loading..." message; after loading, the result is rendered as large text within an SVG-ready HTML structure.

PPiotr Paszek

Loading Data with React & D3

This example demonstrates how to load and summarize a CSV dataset using React and D3. It fetches CSS named colors data from a GitHub gist and displays a text summary showing the file size in kilobytes, row count, and column count. The code uses React hooks (useState, useEffect, useCallback) to manage state and trigger the data loading, while D3's csv function handles parsing. The result renders as an SVG-compatible pre element that updates from a loading message to the formatted data statistics once the fetch completes.

Llefat92

Loading Data with React & D3

This example demonstrates how to load external CSV data in a React component using D3, displaying the dataset’s size, row count, and column count as formatted text. The code uses React hooks (`useState`, `useEffect`) to fetch the data via `d3.csv` from a GitHub gist URL, storing the parsed result in state. Once loaded, the `message` function formats the summary using `csvFormat`, showing the file size in kilobytes, the number of rows (entries), and the number of columns from the parsed data’s `.columns` property. Before data arrives, the UI shows a “Loading...” placeholder, set against a full-screen preformatted text layout.

KK3zter

Loading Data with React & D3

This example demonstrates how to load and display external CSV data using React state and D3 utilities. It fetches a dataset of CSS named colors from a GitHub gist, then calculates and displays the file size in kilobytes, the number of rows, and the number of columns as plain text. The code uses React’s useState and useEffect hooks to manage the async data loading, and d3.csv to parse the remote CSV file. While waiting for data, the interface shows a “Loading...” message.

MMonish Vassantrai

Loading Data using React & D3

This example demonstrates how to load and summarize a CSV dataset in a React application using D3. It fetches named color data from a GitHub gist via D3’s `csv` method, then displays a text message showing the file size in kilobytes, row count, and column count once the data arrives. While the data loads, the screen shows the word "loading." The implementation uses React hooks (`useState`) to manage the asynchronous data fetching and renders the result inside a `<pre>` element styled with a large font.

Lleongtini

Loading Data with React and D3

This example demonstrates how to load and summarize a CSV dataset in a React application using D3 utilities. The component displays the data’s size in kilobytes, row count, and column count in large text. React’s `useState` and `useEffect` hooks manage the asynchronous data loading, while D3’s `csv` and `csvFormat` functions fetch and format the data from a GitHub Gist containing CSS named colors. D3 version 5 and React 16 are used together.

JJulia

Loading data with React & D3

This example demonstrates how to load and summarize a CSV dataset within a React application using D3 utilities. It fetches CSS named colors from a remote GitHub Gist and displays a concise report of the data's size, row count, and column count. The implementation uses React's `useState` and `useEffect` hooks to manage state and trigger the data loading, while `d3.csv` parses the remote CSV file and `d3.csvFormat` calculates the data's kilobyte size. The interface initially shows a "Loading..." message until the asynchronous fetch completes.

Ssz3g12