DOMImplementation: createDocumentType() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

The DOMImplementation.createDocumentType() method returns a DocumentType object which can either be used with DOMImplementation.createDocument upon document creation or can be put into the document via methods like Node.insertBefore() or Node.replaceChild().

Syntax

js
createDocumentType(qualifiedNameStr, publicId, systemId)

Parameters

qualifiedNameStr

A string containing the qualified name, like svg:svg.

publicId

A string containing the PUBLIC identifier.

systemId

A string containing the SYSTEM identifiers.

Return value

A DocumentType.

Examples

js
const dt = document.implementation.createDocumentType(
  "svg:svg",
  "-//W3C//DTD SVG 1.1//EN",
  "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd",
);
const d = document.implementation.createDocument(
  "http://www.w3.org/2000/svg",
  "svg:svg",
  dt,
);
alert(d.doctype.publicId); // -//W3C//DTD SVG 1.1//EN

Specifications

Specification
DOM Standard
# ref-for-dom-domimplementation-createdocumenttype①

Browser compatibility

BCD tables only load in the browser

See also