Smilly face
This example renders a smiling face as a static SVG graphic using React and ReactDOM. The visualization shows a large yellow circle for the face with two smaller black circles positioned as eyes, all drawn on a 960x500 canvas. The code creates these shapes declaratively using SVG circle elements and React’s JSX syntax within an HTML wrapper. The rendering relies on React 16.9.0 and ReactDOM, both loaded from the unpkg CDN, to mount the app into a root div.