SVGTransformList: replaceItem() 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 replaceItem() method of the SVGTransformList interface replaces an existing item in the list with a new item.
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. -
If the item is already in this list, note that the
indexof the item to replace is before the removal of the item.
Syntax
replaceItem(newItem, index)
Parameters
newItem-
A
SVGTransformitem that is inserted into the list. index-
An
integer; the index where the new item should replace the existing one, as an unsigned long.
Return value
An SVGTransform object; the inserted item from the list.
Exceptions
This method may raise a DOMException of one of the following types:
NoModificationAllowedErrorDOMException-
Thrown if
SVGTransformListcorresponds to a read-only attribute or when the object itself is read-only. IndexSizeErrorDOMException-
Thrown if the index number is greater than or equal to
numberOfItems.
Examples
Replacing a Transformation in the List
<svg width="200" height="200" id="mySvg">
<rect width="100" height="100" fill="blue" transform="translate(50,50)" />
</svg>
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 rotation transformation
const rotateTransform = svgElement.createSVGTransform();
rotateTransform.setRotate(45, 50, 50);
transformList.replaceItem(rotateTransform, 0);
// Log the details of the new transformation
console.log(`New Transformation Type: ${transformList.getItem(0).type}`); // Output: 4 (e.g. SVG_TRANSFORM_ROTATE)
Specifications
| Specification |
|---|
| Scalable Vector Graphics (SVG) 2 # __svg__SVGNameList__replaceItem |
Browser compatibility
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