The setScale() method of the SVGTransform interface sets the transform type to SVG_TRANSFORM_SCALE, with parameters sx and sy defining the scale amounts.
setScale(sx, sy)sxA float defining the scale amount along the X-axis.
syA float defining the scale amount along the Y-axis.
None (undefined).
NoModificationAllowedError DOMExceptionThrown if the attribute or the SVGTransform object is read-only.
// Select an SVG element and create a transform object
const svgElement = document.querySelector("svg");
const transform = svgElement.createSVGTransform();
// Set the scale values for the transform
transform.setScale(2, 3);
// Output the scale details
console.log(`Scale X: ${transform.matrix.a}`); // Output: 2
console.log(`Scale Y: ${transform.matrix.d}`); // Output: 3