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General Update Pattern - reusable: alphabet example D3v5+

✓ Published1🌍 Public
JJimMaltby
Last edited Apr 9, 2022
Created on Dec 31, 2021

This example demonstrates the General Update Pattern for reusable D3 charts, using a sequence of alphabet letters to show how data joins, updates, and exits are handled with `d3.join()` transitions. The visualization renders SVG text elements that animate vertically (entering from above, exiting below) while shifting horizontally as the dataset changes. Built as a reusable module pattern following ProD3 conventions, the chart uses `d3.transition` for smooth animations, with CSS classes for enter, update, and exit states. The code implements the updateable chart pattern from Rob Moore’s and Mike Bostock’s foundational work, using `d3.select` and SVG text manipulation.

AI-generated description

THE GENERAL UPDATE PATTERN - v5+ in reusable format

USING join() rather than merge().

MB alphabet example: https://bl.ocks.org/mbostock/3808234 https://bl.ocks.org/john-guerra/cabfbaed34d942e4dd81199855e4987f

A vanilla HTML implementation of Rob Moores updateable pattern Towards Updatable https://www.toptal.com/d3-js/towards-reusable-d3-js-charts.

It is derived from Mike Bostock's Towards Reusable Charts (https://bost.ocks.org/mike/chart/) as the source of the foundational principles.

UseS the ProD3 pattern (Pro D3.js Use D3.js to Create Maintainable, Modular, and Testable Charts by Marcos Iglesias https://www.apress.com/gp/book/9781484252024) as the basis for further charts.

MIT Licensed

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