SVGTransformList: appendItem() method
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 appendItem() method of the SVGTransformList interface inserts a new item at the end of the list.
The inserted item is the item itself and not a copy.
- If
newItemis already in a list, it is removed from its previous list before it is inserted into this list.
Syntax
js
appendItem(newItem)
Parameters
newItem-
An
SVGTransformitem that is appended to the list.
Return value
An SVGTransform object; the appended item from the list.
Exceptions
NoModificationAllowedErrorDOMException-
Thrown if
SVGTransformListcorresponds to a read-only attribute or when the object itself is read-only.
Examples
Appending a New Transformation
html
<svg width="200" height="200">
<rect width="100" height="100" fill="red" />
</svg>
js
const svgElement = document.querySelector("svg");
const rectElement = svgElement.querySelector("rect");
// Access the transform list of the <rect> element
const transformList = rectElement.transform.baseVal;
// Create a new translation transformation
const svgTransform = svgElement.createSVGTransform();
svgTransform.setTranslate(50, 50);
// Append the new transformation to the list
const appendedTransform = transformList.appendItem(svgTransform);
console.dir(appendedTransform); // Output: SVGTransform { type: 2, matrix: SVGMatrix, angle: 0 }
console.log(`Total number of transformations: ${transformList.numberOfItems}`); // Output: 1
Specifications
| Specification |
|---|
| Scalable Vector Graphics (SVG) 2 # __svg__SVGNameList__appendItem |
Browser compatibility
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