General Update Pattern

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General Update Pattern

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Last edited Jun 17, 2020

Created on Jun 16, 2020

This example demonstrates D3’s general update pattern for smoothly transitioning a fruit bowl’s contents over time. The React-rendered SVG shows apples and lemons as colored circles, with entries scaling up from radius 0, updates shifting positions and recoloring, and exits shrinking away. Using `d3.scaleOrdinal` for color and radius, the code leverages `selection.enter()`, `merge()`, and `exit()` with `transition().duration(1000)` to animate state changes triggered by timed `setTimeout` calls that remove, replace, and filter fruit data.

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General update pattern

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