Fork of Smiley Face Part III
This example demonstrates a React-controlled pet-selection interface, where a dropdown menu displays six animal options (Dog, Cat, Hamster, Parrot, Spider, Goldfish) with an initial default of "Hamster." The App component uses the useState hook to manage the selected value, passing it to a reusable Dropdown component that renders an HTML select element. The Dropdown component maps over the options array to generate each option element, and the onChange event handler updates the selected value through the callback. The page uses React 16.9.0 and D3 v5, though D3 is not actively used for visualization, and the layout includes a large hidden SVG smiley face in the HTML comments.