This example draws a simple cartoon face using D3.js v5 and SVG. A yellow circle forms the head, two black-outlined circles serve as eyes, and an arc path creates a smiling mouth. The code uses d3.arc to generate the mouth’s path with specified inner and outer radii and angles, while d3.select appends circles and a group element to the SVG. The face is positioned using fixed coordinates and the viewBox dimensions are read from the SVG attributes.