Fork of Let's make a face with D3.js!
A smiling face rendered as an SVG drawing with D3.js v5 animates its eyebrows in a continuous loop. The visualization demonstrates fundamental DOM manipulation by using D3 selectors to append circles, rectangles, and a path, with the mouth constructed via the d3.arc arc generator. Eyebrow movement relies on chained transition().duration() calls that translate the eyebrow group up and down over two-second intervals.