This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.
The dx read-only property of the SVGFEDropShadowElement interface reflects the dx attribute of the given <feDropShadow> element.
An SVGAnimatedNumber object.
dx valueIn this example, we retrieve the horizontal shift of the <feDropShadow> by using the dx read-only property of the SVGFEDropShadowElement interface.
<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
<defs>
<filter id="drop-shadow-filter">
<!-- Drop Shadow with dx property set to 10 -->
<feDropShadow
in="SourceGraphic"
dx="10"
dy="10"
stdDeviation="5"
flood-color="red" />
</filter>
</defs>
<!-- Rectangle with a red shadow -->
<rect
x="20"
y="20"
width="100"
height="100"
fill="red"
filter="url(#drop-shadow-filter)" />
<!-- Circle with a red shadow -->
<circle
cx="100"
cy="100"
r="50"
fill="blue"
filter="url(#drop-shadow-filter)" />
</svg>
const dropShadow = document.querySelector("feDropShadow");
console.log(dropShadow.dx.baseVal); // Output: 10
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
dx |
13 | 79 | 30 | 15 | 6 | 18 | 30 | 14 | 6 | 1.0 | 4.4 | 6 |
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https://developer.mozilla.org/en-US/docs/Web/API/SVGFEDropShadowElement/dx