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SVGAnimatedNumber: 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 SVGAnimatedNumber interface represents the animated value of an SVG element's numeric attribute.

Some animatable SVG attributes accept a single number, such as the radius attribute of the <circle> or <ellipse> elements and the width and height attributes of the <rect> element, and many others. The animVal attribute provides access to the current animated value of the animatable numeric attribute during animations.

Value

A number; the current value of the animated attribute as a float.

Examples

This example includes a <path> element with a nested <animate> element that animates the value of the path's pathLength attribute:

<path d="M 0,40 h100" pathLength="90" id="path">
  <animate
    attributeName="pathLength"
    values="50; 90; 50;"
    dur="10s"
    repeatCount="indefinite" />
</path>
const path = document.querySelector("path");

console.log(path.pathLength.animVal); // output: 50
console.log(path.pathLength.baseVal); // output: 90

We use the animVal property to access the current value of the animating pathLength, while the SVGAnimatedNumber.baseVal reflects the base (non-animating) value of the pathLength.

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Opera Safari Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet WebView Android WebView on iOS
animVal 1 12 1.5 ≤12.1 3 18 4 ≤12.1 1 1.0 3 1

See also

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https://developer.mozilla.org/en-US/docs/Web/API/SVGAnimatedNumber/animVal