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refactored bar chart

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BBrian Machado
Last edited Jul 2, 2022
Created on Jul 2, 2022

This example shows a horizontal bar chart of population data for ten countries from a UN 2019 dataset. The visualization uses React to render SVG elements, with D3 v7 scales (`scaleBand` and `scaleLinear`) positioning the bars and axes. Custom React components (`AxisBottom`, `AxisLeft`, `Marks`) construct the tick lines, labels, and rectangles based on the data, while `useData` fetches and parses the CSV via `d3.csv`.

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Smiley face implementation with React.

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