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DOMImplementation: createDocumentType() method

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

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

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