DocumentFragment: replaceChildren() method

The DocumentFragment.replaceChildren() method replaces the existing children of a DocumentFragment with a specified new set of children. These can be string or Node objects.

Syntax

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

Parameters

param1, …, paramN: A set of Node objects or strings to replace the DocumentFragment's existing children with. If no replacement objects are specified, then the DocumentFragment is emptied of all child nodes.

Return value

None (undefined).

Exceptions

HierarchyRequestError DOMException: Thrown when the constraints of the node tree are violated.

Examples

undefined

Emptying a document fragment

replaceChildren() provides a very convenient mechanism for emptying a document fragment of all its children. You call it on the document fragment without any argument specified:

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>]

fragment.replaceChildren();

fragment.children; // HTMLCollection []