HTML DOM Element isDefaultNamespace()
Example
Is the defined namespace the default namespace?
let answer = element.isDefaultNamespace("http://www.w3.org/1999/xhtml");
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Description
The isDefaultNamespace() method returns true
if the elements's namespace is default.
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
See Also:
Syntax
element.isDefaultNamespace(namespaceURI)
or
node.isDefaultNamespace(namespaceURI)
Parameters
| Parameter | Description |
| namespaceURI | Required. The URI of the namespace to check. |
Return Value
| Type | Description |
| Boolean | true if the namespace is default,
otherwise false. |
Browser Support
element.isDefaultNamespace() is a DOM Level 3 (2004) feature.
It is fully supported in all modern browsers:
| Chrome | Edge | Firefox | Safari | Opera | IE |
| Yes | Yes | Yes | Yes | Yes | 11 |
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