Element: getElementsByTagNameNS() method

The Element.getElementsByTagNameNS() method returns a live HTMLCollection of elements with the given tag name belonging to the given namespace. It is similar to getElementsByTagNameNS, except that its search is restricted to descendants of the specified element.

Syntax

getElementsByTagNameNS(namespaceURI, localName)

Parameters

• namespaceURI
  • : The namespace URI of elements to look for (see namespaceURI and namespaceURI). For example, if you need to look for XHTML elements, use the XHTML namespace URI, http://www.w3.org/1999/xhtml.
• localName
  • : Either the local name of elements to look for or the special value "*", which matches all elements (see localName and localName).

Return value

A live HTMLCollection of found elements in the order they appear in the tree.

Examples

// Check the alignment on a number of cells in a table in an XHTML document.
const table = document.getElementById("forecast-table");
const cells = table.getElementsByTagNameNS(
  "http://www.w3.org/1999/xhtml",
  "td",
);

for (const cell of cells) {
  const axis = cell.getAttribute("axis");
  if (axis === "year") {
    // Grab the data
  }
}

Specifications

Browser compatibility