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General Update Pattern - reusable: alphabet example v4

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JJimMaltby
Last edited Dec 30, 2021
Created on Dec 29, 2021

This example demonstrates D3.js’s general update pattern for animating text elements as the alphabet dataset changes. It shows enter, update, and exit selections, colored green, steelblue, and brown respectively, with letters transitioning vertically and horizontally. The code uses d3.transition, selection.data with a key function, and reusable chart module patterns derived from Mike Bostock’s and Rob Moore’s work. The SVG’s chart-group handles all text rendering, including fill-opacity fades for new and removed letters.

AI-generated description

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.

Will evolve to use 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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