D3 Selection Exploration 2

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D3 Selection Exploration 2

✓ Published1🌍 Public

Last edited Oct 5, 2022

Created on Oct 5, 2022

A reactive swarm of animated circles demonstrates D3’s data join, updating 60 times per second via `setInterval`. Each circle’s x-position, y-position, and radius are recomputed from a sine wave, with the count oscillating between 5 and 15. The code uses `d3.select` to append an SVG, `d3.range` for data generation, and `selection.join('circle')` to create or update elements in place. The animation runs seamlessly in a React project, showing how D3’s selection methods handle dynamic data without explicit enter or exit handling.

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

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