DocumentFragment: prepend() method

The DocumentFragment.prepend() method inserts a set of Node objects or string objects before the first child of the document fragment. String objects 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

js

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

Parameters

param1, …, paramN

A set of Node or string objects 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

js

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

Specification
DOM Standard
# ref-for-dom-parentnode-prepend①

Browser compatibility

BCD tables only load in the browser

See also