Arguments

namespace (DOMString) required

The namespaceURI of the attribute to remove. A value of null means no namespace.

name (DOMString) required

The localName of the attribute to remove.

Description

Remove an attribute with the specified name and namespace URI.

If the attribute has a specific default value in this document type, removing the attribute should replace it with the default value, having the same namespaceURI, localName and prefix.

Unlike Element nodes, Attr nodes do not inherit a namespace from the element they're attached to — if an attribute does not have an explicitly defined namespace then it simply has no namespace. See Attr for more details.

Compatibility

Internet Explorer doesn't implement this method (it returns undefined).

Opera returns null for attributes which are not defined, rather than an empty string.

In Safari 1.3 and 2 attributes inherit a namespace from their owning element, therefore this method matches attributes with no explicit namespace if the namespace argument matches the default.

Additionally, Safari 1.3 cannot see the xml prefix, so an xml:lang attribute will be treated as a lang attribute, and matched only if the namespace argument is http://www.w3.org/1999/xhtml (even when the document isn't any flavour of HTML); other XML attributes which have no HTML analog (such as xml:space) will be matched if the namespace argument is null or an empty string. In Safari 2 this is only the case for an xml:lang attribute — other XML attributes are matched correctly, although they are also still matched if the namespace argument is null or an empty string.

In Firefox and Opera an empty-string namespace is treated the same as a null namespace (ie. it's taken to mean no namespace, when it should be treated as a real namespace URI); only Safari 3 gets this right.