Fork of Let's make a face with D3.js!
A D3.js smiley face demonstrates basic DOM manipulation with animated eyebrows. Built with d3.v5, the example uses D3 selections to append SVG shapes—circles for the head and eyes, rectangles for eyebrows, and an arc-generated path for the mouth—into a centered group. A two-stage `transition()` chain moves the eyebrow group up and back down over four seconds, illustrating D3's animation timing. The code imports `select` and `arc` from the 'd3' package, with dimensions read directly from the SVG attributes.