General Update Pattern, tutoriel interactif

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General Update Pattern, tutoriel interactif

✓ Published0🌍 Public

Last edited Sep 7, 2016

Created on Sep 7, 2016

This interactive tutorial demonstrates D3 v4's general update pattern, showing how data changes are reconciled with existing SVG elements step by step. As users navigate through code lines with keyboard arrows, the visualization highlights which circles are selected for updating, entering, or exiting the scene. The example uses `selectAll`, `.data()`, `.enter()`, `.append()`, and `.exit()` to manage lifecycle transitions, with colors indicating fill states. It presents randomly drawn letters between A and H as data points, providing a concrete walkthrough of selection merging and DOM state.

AI-generated description

Une exploration interactive du general update pattern de D3 (version 4). Utilisez les flèches du clavier pour navigeur dans les lignes de code.

Le but est de montrer une boucle de mise à jour de données, en avançant pas à pas dans les lignes du code. Des détails, comme l'endroit où l'on positionne les éléments, sont omis, de manière à pouvoir se concentrer sur 1) ce qui est sélectionné et 2) ce qui existe dans le DOM.

Version originale réalisée par Chris Given sur une idée d'Alex Engler. Traduit par Philippe Rivière. Suggestions et remarques bienvenues.

mit Licensed

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