Fork of Hello HTML
This example renders a smiling face emoji using React and D3. It shows a yellow circle with black stroke, two black eyes, and an arc-based mouth, all positioned within an SVG using transforms. The code uses ReactDOM to mount a component that leverages `d3.arc()` to generate the mouth path, while circles handle the face and eyes. The drawing is centered on an 960x500 SVG, with dimensions and offsets defined as constants, and it uses static values for all geometry without any interactive or data-driven behavior.