Loading Data with React and Data

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Loading Data with React and Data

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Last edited Nov 9, 2021

Created on Nov 7, 2021

This example shows a horizontal bar chart of the top 10 countries by 2020 population, rendered as SVG using React. The code loads CSV data from a GitHub gist with `d3.csv`, then uses `scaleBand` and `scaleLinear` to map countries and population values to positions and bar widths. React’s `useState` and `useEffect` manage the asynchronous data loading, with a "Loading..." fallback until data arrives. Gridlines and axis labels are generated from the scales.

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