The General Update Pattern(Enter Update Exit Merge[enter+update])

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The General Update Pattern(Enter Update Exit Merge[enter+update])

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Last edited Apr 18, 2020

Created on Apr 18, 2020

This example demonstrates the general update pattern with mixed enter and update selections using D3.js v5 and SVG animations. It shows a row of apples that transition into lemons and disappear over time, with new circles smoothly merging into the existing selection. The code uses `selection.enter().append()`, `selection.merge()`, `selection.exit()`, and `transition.attr()` to animate radius and color changes. Data is generated with `d3.range` and mapped to fruit types, while `d3.scaleOrdinal` maps types to colors and sizes.

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