D3 Bar Chart Rects

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D3 Bar Chart Rects

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Last edited Feb 12, 2026

Created on Feb 9, 2026

This example demonstrates a simple bar chart built with D3.js, where an array of twenty numeric values is visualized as a series of teal, inline-block rectangles. The chart uses D3's selection and data-binding API (`d3.select`, `.data`, `.enter`, and `.append`) to dynamically create `div` elements with a CSS class. Each bar’s height is set via the `.style` method, multiplying the data value by a fixed factor to produce a pixel height, resulting in an animated rendering of the dataset.

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