Smiley Test
A single yellow circle with a black outline, drawn in SVG, sits centered on a 960-by-500 canvas, representing a minimal smiley face test. The example demonstrates rendering a static shape using React and ReactDOM, where the component returns JSX defining the circle’s position, radius, fill, and stroke. It relies on React’s declarative syntax to describe SVG elements, with no interactivity or data processing. The code imports React and ReactDOM directly via UMD builds and renders the component into a root div, serving as a simple check of SVG output within a React application.