The Element.getElementsByTagNameNS()
method returns a live HTMLCollection
of elements with the given tag name belonging to the given namespace. It is similar to Document.getElementsByTagNameNS
, except that its search is restricted to descendants of the specified element.
Syntax
elements = element.getElementsByTagNameNS(namespaceURI, localName)
elements
is a liveHTMLCollection
of found elements in the order they appear in the tree.element
is the element from where the search should start. Note that only the descendants of this element are included in the search, not the node itself.namespaceURI
is the namespace URI of elements to look for (seeElement.namespaceURI
andAttr.namespaceURI
). For example, if you need to look for XHTML elements, use the XHTML namespace URI,http://www.w3.org/1999/xhtml
.localName
is either the local name of elements to look for or the special value"*"
, which matches all elements (seeElement.localName
andAttr.localName
).
Example
// check the alignment on a number of cells in a table in an XHTML document. var table = document.getElementById("forecast-table"); var cells = table.getElementsByTagNameNS("http://www.w3.org/1999/xhtml", "td"); for (var i = 0; i < cells.length; i++) { var axis = cells[i].getAttribute("axis"); if (axis == "year") { // grab the data } }
Specifications
Specification | Status | Comment |
---|---|---|
DOM The definition of 'Element.getElementsByTagNameNS()' in that specification. |
Living Standard | Changed the return value from NodeList to HTMLCollection . |
Document Object Model (DOM) Level 3 Core Specification The definition of 'Element.getElementsByTagNameNS()' in that specification. |
Obsolete | No change from Document Object Model (DOM) Level 2 Core Specification. |
Document Object Model (DOM) Level 2 Core Specification The definition of 'Element.getElementsByTagNameNS()' in that specification. |
Obsolete | Initial definition |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
getElementsByTagNameNS | Chrome
Full support
1
| Edge Full support 12 | Firefox
Full support
Yes
| IE Full support 5.5 | Opera
Full support
Yes
| Safari
Full support
6
| WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android
Full support
Yes
| Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
getElementsByTagNameNS(*) | Chrome Full support 1 | Edge Full support 12 | Firefox Full support Yes | IE Full support 6 | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support 18 | Firefox Android
Full support
Yes
| Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support 1.0 |
Legend
- Full support
- Full support
- See implementation notes.
- See implementation notes.