This example demonstrates the D3 general update pattern using the merge() method to combine enter and update selections. It shows a bowl of fruit represented as circles that change as apples are eaten or replaced with lemons. The code uses d3.scaleOrdinal for color and radius mapping, d3.selectAll().data() for data joins, and the .enter()/.merge()/.exit() API to handle dynamic state changes. The visualization is rendered as SVG within a React framework using d3.v5.