The HTMLTemplateElement interface enables access to the contents of an HTML <template> element.
Note: An HTML parser can create either an HTMLTemplateElement or a ShadowRoot when it parses a <template> element, depending on the <template> attributes. If an HTMLTemplateElement is created the "shadow" attributes are reflected from the template. However these are not useful, because an HTMLTemplateElement is not a shadow root and cannot subsequently be changed to a shadow root.
Instance properties
This interface inherits the properties of HTMLElement.