This example shows a stylized smiley face built with React and D3 v5, featuring rotated eyebrows, a curved mouth, and decorative hair. The face is rendered as SVG elements, with each part—eyes, pupils, nose, and mouth—defined using React JSX. D3’s `arc()` generator creates the mouth and eyebrow shapes, which are then transformed through SVG `rotate` and `translate` attributes. The code uses React’s `ReactDOM.render` to mount the component, while drawing primitives like `<circle>`, `<path>`, and `<g>` structure the face.