data join

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Last edited Jun 23, 2023

Created on Jun 22, 2023

Forked from append and remove elements in d3

This example demonstrates the D3 data join pattern by binding an array of city population objects to SVG rectangles and text labels, producing a simple horizontal bar chart. The code uses `select` and `data` from D3 v7, with the `.join` method to create elements for each datapoint. Rectangles are sized proportionally to population via a scale factor, while a separate join on a `.labels` group renders each city’s name. The SVG canvas is fixed at 2000×2000, with five cities hardcoded in the script.

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A demonstration of how to start using D3 version 6.

MIT Licensed

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