Baseline Widely available
The removeNamedItem() method of the NamedNodeMap interface removes the Attr corresponding to the given name from the map.
removeNamedItem(attrName)
attrName
The name of the attribute to remove from the map.
The removed Attr.
NotFoundError DOMException
Thrown if there is no attribute with the given name.
<pre test="testValue"></pre>
const pre = document.querySelector("pre");
const attrMap = pre.attributes;
let result = `The 'test' attribute initially contains '${attrMap["test"].value}'.\n`;
result += "We remove it.\n\n";
attrMap.removeNamedItem("test");
result += attrMap.getNamedItem("test")
? "And 'test' still exists."
: "And 'test' is no more to be found.";
pre.textContent = result;
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