prefix property

String? get prefix

The read-only prefix property of the Attr returns the namespace prefix of the attribute, or null if no prefix is specified.

The prefix is always in lower case, whatever case is used at the attribute creation.

Note: Only XML supports namespaces. HTML does not. That means that the prefix of an attribute of an HTML element will always be null.

Also, only the xml (for the xml:lang attribute), xlink (for the xlink:href, xlink:show, xlink:target and xlink:title attributes) and xpath namespaces are supported, and only on SVG and MathML elements.

Implementation

external String? get prefix;