SVGAnimatedBoolean: animVal 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 animVal read-only property of the SVGAnimatedBoolean interface represents the current animated value of the associated animatable boolean SVG attribute. If the attribute is not animated, animVal is the same as SVGAnimatedBoolean.baseVal.

Some boolean SVG attributes, such as preserveAlpha, are animatable. In such cases, SVGAnimatedBoolean.animVal property is true when the attribute value resolves to true. Otherwise, the value is false.