DOMElement::setAttributeNS

Adds new attribute

&reftitle.description; public `void` `DOMElement::setAttributeNS` ``string``null```namespace` `string` `qualifiedName` `string` `value`

Sets an attribute with namespace `namespace` and name `qualifiedName` to the given value. If the attribute does not exist, it will be created.

&reftitle.parameters;

`namespace`

- The namespace URI.

`qualifiedName`

- The qualified name of the attribute, as `prefix:tagname`.

`value`

- The value of the attribute.

&reftitle.returnvalues;

&return.void;

&reftitle.errors;

`DOM_NO_MODIFICATION_ALLOWED_ERR`

- Raised if the node is readonly.

`DOM_NAMESPACE_ERR`

- Raised if `qualifiedName` is a malformed qualified name, or if `qualifiedName` has a prefix and `namespace` is &null;.

&reftitle.seealso;

- `DOMElement::hasAttributeNS`
- `DOMElement::getAttributeNS`
- `DOMElement::removeAttributeNS`