Baseline Widely available
The replaceItem() method of the SVGPointList interface replaces a DOMPoint in the list.
obj
A DOMPoint object containing the coordinates of the point to be inserted.
index
The index of the item to replace.
The new DOMPoint object.
NoModificationAllowedError DOMException
Thrown if the list is read-only.
IndexSizeError DOMException
Thrown if the index passed in is greater than the number of items in the list.
The following example shows an SVG which contains a <polyline> with five coordinate pairs. A new DOMPoint is created, then replaces the point at index 1 (the second item in the list).
<svg id="svg" viewBox="-10 -10 120 120" xmlns="http://www.w3.org/2000/svg">
<polyline
id="example"
stroke="black"
fill="none"
points="50,0 21,90 98,35 2,35 79,90" />
</svg>
const example = document.getElementById("example");
const point = document.getElementById("svg").createSVGPoint();
point.y = 10;
point.x = 10;
console.log(example.points.replaceItem(point, 1));
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