getHTML()The getHTML() method of Element and ShadowRoot objects serializes an element's DOM to an HTML string.domDOMnewly2024-09-16https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#html-serialization-methodshttps://developer.mozilla.org/docs/Web/API/Element/getHTMLapi.Element.getHTMLapi.ShadowRoot.getHTMLhttps://nowyoucanuse.com/features--gethtml.html