The numberOfItems read-only property of the SVGTransformList interface represents the number of items in the list.
An integer; the number of SVGTransform objects in the list as an unsigned long.
numberOfItems Property<svg width="200" height="200" id="mySvg">
<rect width="100" height="100" fill="blue" />
</svg>const svgElement = document.querySelector("svg");
const rectElement = svgElement.querySelector("rect");
// Access the transform list of the <rect> element
const transformList = rectElement.transform.baseVal;
// Apply a translate transformation to the <rect> element
const translateTransform = svgElement.createSVGTransform();
translateTransform.setTranslate(50, 50);
transformList.appendItem(translateTransform);
console.log(`Number of transformations: ${transformList.numberOfItems}`); // Output: 1