HTML DOM Element namespaceURI
Examples
Get the namespace URI of an element in a HTML document:
let uri = element.namespaceURI;
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Get the namespace URI of an element an XHTML document:
let uri = element.namespaceURI;
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Note
The default namespace URI is the same for HTML and XHTML documents.
All HTML elements inherit the namespace URI of their parents:
http://www.w3.org/1999/xhtml
Definition and Usage
The namespaceURI property returns the URI of an elements namespace.
The namespaceURI property is read-only.
The namespaceURI property has no practical use in HTML.
See Also:
Syntax
element.namespaceURI
Return Value
| Type | Description |
| String | The URI of the elements's namespace.null if the element is not in a namespace. |
Browser Support
element.namespaceURI is a DOM Level 2 (2001) feature.
It is fully supported in all browsers:
| Chrome | Edge | Firefox | Safari | Opera | IE |
| Yes | Yes | Yes | Yes | Yes | 9-11 |
