NamedNodeMap: removeNamedItemNS() method

The removeNamedItemNS() method of the NamedNodeMap interface removes the Attr corresponding to the given namespace and local name from the map.

Syntax

removeNamedItemNS(namespace, localName)

Parameters

• namespace

  • : The namespace of the attribute to remove from the map

    [!WARNING] namespace is the URI of the namespace, not the prefix.

• localName

  • : The local name of the attribute to remove from the map.

Return value

The removed Attr.

Exceptions

• NotFoundError DOMException
  • : Thrown if there is no attribute with the given namespace and local name.

Example

<pre></pre>

const parser = new DOMParser();
const xmlString =
  '<warning ob:one="test" xmlns:ob="http://www.example.com/ob">Beware!</warning>';
const doc = parser.parseFromString(xmlString, "application/xml");

const pre = document.querySelector("pre");
const warning = doc.querySelector("warning");
const attrMap = warning.attributes;

let result = `The 'ob:one' attribute initially contains '${attrMap["ob:one"].value}'.\n`;

result += "We remove it.\n\n";
attrMap.removeNamedItemNS("http://www.example.com/ob", "one");

result += attrMap["ob:one"]
  ? "And 'ob:one' still exists."
  : "And 'ob:one' is no more to be found.";

pre.textContent = result;

Specifications

Browser compatibility