DocumentFragment: append() method

The DocumentFragment.append() method inserts a set of Node objects or string objects after the last child of the document fragment. String objects are inserted as equivalent Text nodes.

This method appends a child to a DocumentFragment. To append to an arbitrary element in the tree, see Element.append().

append(param1)
append(param1, param2)
append(param1, param2, /* …, */ paramN)

let fragment = new DocumentFragment();
let div = document.createElement("div");
fragment.append(div);

fragment.children; // HTMLCollection [<div>]