30. D3 Bar Chart Aligned

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30. D3 Bar Chart Aligned

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Last edited Feb 12, 2026

Created on Feb 9, 2026

This example displays a static bar chart of 20 numeric values using D3 v4, with each bar rendered as an SVG rectangle and labeled with its corresponding data value in white sans-serif text centered within the bar. The chart uses a fixed SVG width of 500 pixels and height of 100 pixels, with bar heights scaled by a factor of four and a one-pixel padding between bars. Each rectangle’s fill color is a blue gradient calculated from its data value, and the labels are positioned inside the bars using `d3.selectAll` with data binding and `.attr` methods.

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