SVGAnimatedLength: 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 property of the SVGAnimatedLength interface contains the current value of an SVG enumeration. If there is no animation, it is the same value as the baseVal.

Value

An SVGLength containing the current value of the enumeration.

Examples

html

<svg
  xmlns="http://www.w3.org/2000/svg"
  viewBox="0 0 100 100"
  width="200"
  height="200">
  <circle cx="50" cy="50" r="20" fill="gold" id="circle">
    <animate
      attributeName="r"
      values="20;25;10;20"
      dur="8s"
      repeatCount="indefinite" />
  </circle>
</svg>
<pre id="log"></pre>

const circle = document.getElementById("circle");
const log = document.getElementById("log");

function displayLog() {
  const animValue = circle.r.animVal.value;
  const baseValue = circle.r.baseVal.value;
  log.textContent = `The 'circle.r.animVal' is ${animValue}.\n`;
  log.textContent += `The 'circle.r.baseVal' is ${baseValue}.`;
  requestAnimationFrame(displayLog);
}
displayLog();