The Document.append()
method inserts a set of Node
objects or string objects after the last child of the document. String objects are inserted as equivalent Text
nodes.
This method appends a child to a Document
. To append to an arbitrary element in the tree, see Element.append()
.
append(param1)
append(param1, param2)
append(param1, param2, paramN)
If you try to append an element to an existing HTML document, it might throw a HierarchyRequestError
DOMException
given a <html>
element already exists.
let html = document.createElement("html");
document.append(html);
If you are creating a new document without any existing element, you can append a root HTML element (or a root SVG element):
let doc = new Document();
let html = document.createElement("html");
doc.append(html);
doc.children;