files/en-us/web/api/svgforeignobjectelement/y/index.md
{{APIRef("SVG")}}
The y read-only property of the {{domxref("SVGForeignObjectElement")}} interface describes the y-axis coordinate of the <foreignObject> element. It reflects the computed value of the {{SVGAttr("y")}} attribute on the {{SVGElement("foreignObject")}} element.
The attribute value is a <length>, <percentage>, or <number>. The numeric value of the {{domxref("SVGAnimatedLength.baseVal")}} is the y-coordinate of the <foreignObject> element in the user coordinate system.
An {{domxref("SVGAnimatedLength")}}.
Given the following SVG:
<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
<defs>
<foreignObject id="object1" x="50" y="75" width="100" height="50">
<div xmlns="http://www.w3.org/1999/xhtml">
<p>This is a foreign object.</p>
</div>
</foreignObject>
<foreignObject id="object2" x="25%" y="50%" width="10%" height="10%">
<div xmlns="http://www.w3.org/1999/xhtml">
<p>This is another foreign object.</p>
</div>
</foreignObject>
</defs>
<rect x="0" y="0" width="200" height="100" fill="lightblue" />
<rect x="0" y="100" width="200" height="100" fill="lightgreen" />
</svg>
We can access the computed values of the y attributes:
const foreignObjects = document.querySelectorAll("foreignObject");
const yObject1 = foreignObjects[0].y;
const yObject2 = foreignObjects[1].y;
console.dir(yObject1.baseVal.value); // output: 75
console.dir(yObject2.baseVal.value); // output: 100 (50% of 200)
{{Specifications}}
{{Compat}}