SVGFESpotLightElement: y property
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The y read-only property of the SVGFESpotLightElement interface describes the vertical coordinate of the position of an SVG filter primitive as a SVGAnimatedNumber.
It reflects the y attribute of the <feSpotLight> element., which can be used to define the light source in a spotlight effect. The attribute is a <number>. The default value is 0.
Value
Example
js
const feSpotLight = document.querySelector("feSpotLight");
const topPosition = feSpotLight.y;
console.log(topPosition.baseVal.value); // the `y` value