This example shows a partially constructed smiley face rendered as a yellow circle with a black outline, paired with a single eye circle positioned to the left of center. The code uses React to define reusable SVG circle elements, with dimensions and positions derived from computed variables such as centerX, centerY, and radius r. The rendering relies on ReactDOM to mount the SVG into the DOM, and all geometric values are calculated from the fixed width and height of 960 by 500 pixels. The face is incomplete, featuring only one eye, leaving the second eye and mouth absent.