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 Element.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

• DocumentFragment.append()
• Element.prepend()