DocumentType: publicId property

The read-only publicId property of the DocumentType returns a formal identifier of the document.

For synthetic DocumentType, this property reflects the value given in parameter to createDocumentType().

Value

A string.

Examples

const docType = document.implementation.createDocumentType(
  "svg",
  "-//W3C//DTD SVG 1.1//EN",
  "http://www.w3.org/2000/svg",
);

console.log(docType.publicId); // Displays "-//W3C//DTD SVG 1.1//EN"

Specifications

Browser compatibility