The cy read-only property of the SVGCircleElement interface reflects the cy attribute of a <circle> element and by that defines the y-coordinate of the circle's center.
If unspecified, the effect is as if the value is set to 0.
An SVGAnimatedLength representing the y-coordinate of the circle's center.
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 0 100 100"
width="200"
height="200">
<circle cx="50" cy="50" r="50" fill="gold" id="circle" />
</svg>const circle = document.getElementById("circle");
console.log(circle.cy);