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Last edited Mar 14, 2023

Created on Feb 6, 2023

This example demonstrates the fundamental D3 data join pattern using SVG text elements. The code initially renders a single text element containing the letter "g" before binding an array of three letters—a, b, c—to all existing text nodes. The D3 join method handles three states: entering new text elements positioned horizontally at increments of 10 pixels, updating existing elements with blue fill, and removing exiting nodes. Using d3.select and selectAll, the React-based example relies entirely on D3 v7’s declarative join API to manage SVG rendering based on array data.

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A bare minimum HTML page demonstrating use of CSS and JavaScript.

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