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GGregory-Howard
Last edited Nov 10, 2016
Created on Nov 10, 2016

A simple bar chart displays five hardcoded values—10, 30, 15, 20, and 100—as vertical rectangles. The chart uses D3 v4’s selection and `append` API to create SVGs directly: `d3.select("body").append("svg")` builds the canvas, then `.selectAll("rect").data(data).enter()` generates bars whose height, y-position, and opacity are derived from each data value. Text labels repeat the same numbers below each bar using `d3.selectAll("text")`, with fixed styling for font size and monospace family. All geometry and styling are set via SVG attributes and styles, with no axes or gridlines present.

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