This example demonstrates the general update pattern in D3, showing how data joins handle enter, update, and exit selections. Five circles representing fruit transition over time as apples are removed and a lemon replaces one apple, with each fruit rendered as an SVG group containing a circle and text label. The code uses d3.scaleOrdinal for color and radius mappings, selection.merge to combine enter and update elements, and selection.exit().remove() to handle removed data. Data is hardcoded as fruit objects with random IDs, created via d3.range and Math.random, and rendered into an SVG using standard d3.v5 selection methods.