Smiley Face Part1
This example visualizes a smiley face as a static SVG graphic built with React and D3. The face consists of a yellow circle for the head, two black circles for eyes, and an arc-shaped path for the mouth, all positioned relative to a central coordinate system. The code uses D3’s `arc` function to generate the mouth’s path, specifying inner and outer radii and angular start and end points. The SVG is rendered via ReactDOM, with styling applied through SVG attributes. The visualization focuses on constructing a recognizable face from basic geometric shapes.