Web/API/DocumentType

The DocumentType interface represents a Node containing a doctype.

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Properties

Inherits properties from its parent, Node, and implements the ChildNode interface.

DocumentType.entities Read only ': A NamedNodeMap of entities declared in the DTD. Every node in this map implements the Entity interface.
DocumentType.internalSubset Read only ': A DOMString of the internal subset, or null if there is none. Eg "<!ELEMENT foo (bar)>".
DocumentType.name Read only: A DOMString, eg "html" for <!DOCTYPE HTML>.
DocumentType.notations Read only ': A NamedNodeMap with notations declared in the DTD. Every node in this map implements the Notation interface.
DocumentType.publicId Read only: A DOMString, eg "-//W3C//DTD HTML 4.01//EN", empty string for HTML5.
DocumentType.systemId Read only: A DOMString, eg "http://www.w3.org/TR/html4/strict.dtd%22, empty string for HTML5.

Methods

Inherits methods from its parent, Node, and implements the ChildNode interface.

ChildNode.remove() ': Removes the object from its parent children list.

Specifications

Specification	Status	Comment
DOMThe definition of 'DocumentType' in that specification.	Living Standard	Added implemention of the `ChildNode` interface. Removed the `internalSubset`, `entities`, and `notation` properties.
Document Object Model (DOM) Level 3 Core SpecificationThe definition of 'DocumentType' in that specification.	Obsolete	No change from Document Object Model (DOM) Level 2 Core Specification.
Document Object Model (DOM) Level 2 Core SpecificationThe definition of 'DocumentType' in that specification.	Obsolete	Added the `publicID`, `systemID`, and `internalSubset` properties.
Document Object Model (DOM) Level 1 SpecificationThe definition of 'DocumentType' in that specification.	Obsolete	Initial definition

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`DocumentType`	Chrome Full support Yes	Edge Full support 12	Firefox Full support 1	IE Full support Yes	Opera Full support Yes	Safari Full support Yes	WebView Android Full support Yes	Chrome Android Full support Yes	Firefox Android Full support 4	Opera Android Full support Yes	Safari iOS Full support Yes	Samsung Internet Android Full support Yes
`entities` Deprecated'Non-standard'	Chrome No support No	Edge No support 12 — 79	Firefox No support 1 — 6	IE No support No	Opera No support No	Safari No support No	WebView Android No support No	Chrome Android No support No	Firefox Android No support 4 — 6	Opera Android No support No	Safari iOS No support No	Samsung Internet Android No support No
`internalSubset` Deprecated'Non-standard'	Chrome No support No	Edge No support 12 — 79	Firefox No support No	IE No support No	Opera No support No	Safari No support No	WebView Android No support No	Chrome Android No support No	Firefox Android No support No	Opera Android No support No	Safari iOS No support No	Samsung Internet Android No support No
`name`	Chrome Full support Yes	Edge Full support 12	Firefox Full support 1	IE Full support Yes	Opera Full support Yes	Safari Full support Yes	WebView Android Full support Yes	Chrome Android Full support Yes	Firefox Android Full support 4	Opera Android Full support Yes	Safari iOS Full support Yes	Samsung Internet Android Full support Yes
`notations` Deprecated'Non-standard'	Chrome No support No	Edge No support 12 — 79	Firefox No support 1 — 6	IE No support No	Opera No support No	Safari No support No	WebView Android No support No	Chrome Android No support No	Firefox Android No support 4 — 6	Opera Android No support No	Safari iOS No support No	Samsung Internet Android No support No
`publicId`	Chrome Full support Yes	Edge Full support 12	Firefox Full support 1	IE Full support Yes	Opera Full support Yes	Safari Full support Yes	WebView Android Full support Yes	Chrome Android Full support Yes	Firefox Android Full support 4	Opera Android Full support Yes	Safari iOS Full support Yes	Samsung Internet Android Full support Yes
`systemId`	Chrome Full support Yes	Edge Full support 12	Firefox Full support 1	IE Full support Yes	Opera Full support Yes	Safari Full support Yes	WebView Android Full support Yes	Chrome Android Full support Yes	Firefox Android Full support 4	Opera Android Full support Yes	Safari iOS Full support Yes	Samsung Internet Android Full support Yes

Legend

Full support: Full support
No support: No support
Non-standard. Expect poor cross-browser support.': Non-standard. Expect poor cross-browser support.
Deprecated. Not for use in new websites.': Deprecated. Not for use in new websites.