DocumentFragment: prepend() method

The DocumentFragment.prepend() method inserts a set of Node objects or strings before the first child of the document fragment. Strings are inserted as equivalent Text nodes.

This method prepends a child to a DocumentFragment. To prepend to an arbitrary element in the tree, see prepend().

Syntax

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

Parameters

• param1, …, paramN
  • : A set of Node objects or strings to insert.

Return value

None (undefined).

Exceptions

• HierarchyRequestError DOMException
  • : Thrown when the node cannot be inserted at the specified point in the hierarchy.

Examples

Prepending an element to a document fragment

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

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

Specifications

Browser compatibility

See also

• append()
• prepend()