DocumentType

The DocumentType interface represents a Node containing a doctype.

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", 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
DOM
The 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 Specification
The 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 Specification
The definition of 'DocumentType' in that specification.		 Obsolete Added the publicID, systemID, and internalSubset properties.
Document Object Model (DOM) Level 1 Specification
The definition of 'DocumentType' in that specification.		 Obsolete Initial definition

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
DocumentTypeChrome Full support YesEdge Full support YesFirefox Full support 1IE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android ?
entities
DeprecatedNon-standard
Chrome No support NoEdge Full support 12Firefox No support 1 — 6IE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoFirefox Android No support 4 — 6Opera Android No support NoSafari iOS No support NoSamsung Internet Android ?
internalSubset
DeprecatedNon-standard
Chrome No support NoEdge Full support 12Firefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android ?
nameChrome Full support YesEdge Full support 12Firefox Full support 1IE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android ?
notations
DeprecatedNon-standard
Chrome No support NoEdge Full support 12Firefox No support 1 — 6IE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoFirefox Android No support 4 — 6Opera Android No support NoSafari iOS No support NoSamsung Internet Android ?
publicIdChrome Full support YesEdge Full support 12Firefox Full support 1IE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android ?
systemIdChrome Full support YesEdge Full support 12Firefox Full support 1IE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android ?

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
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.

See also

Related Topics
  1. Document Object Model
  2. DocumentType
  3. Methods
    1. after()
    2. before()
    3. remove()
    4. replaceWith()
  4. Inheritance:
    1. Node
    2. EventTarget
  5. Related pages for DOM
    1. AbortController
    2. AbortSignal
    3. AbstractRange
    4. Attr
    5. ByteString
    6. CDATASection
    7. CSSPrimitiveValue
    8. CSSValue
    9. CSSValueList
    10. CharacterData
    11. ChildNode
    12. Comment
    13. CustomEvent
    14. DOMConfiguration
    15. DOMError
    16. DOMErrorHandler
    17. DOMException
    18. DOMImplementation
    19. DOMImplementationList
    20. DOMImplementationRegistry
    21. DOMImplementationSource
    22. DOMLocator
    23. DOMObject
    24. DOMParser
    25. DOMPoint
    26. DOMPointInit
    27. DOMPointReadOnly
    28. DOMRect
    29. DOMString
    30. DOMTimeStamp
    31. DOMTokenList
    32. DOMUserData
    33. Document
    34. DocumentFragment
    35. Element
    36. ElementTraversal
    37. Entity
    38. EntityReference
    39. Event
    40. EventTarget
    41. HTMLCollection
    42. MutationObserver
    43. Node
    44. NodeFilter
    45. NodeIterator
    46. NodeList
    47. NonDocumentTypeChildNode
    48. ProcessingInstruction
    49. PromiseResolver
    50. Range
    51. StaticRange
    52. Text
    53. TextDecoder
    54. TextEncoder
    55. TimeRanges
    56. TreeWalker
    57. TypeInfo
    58. USVString
    59. UserDataHandler
    60. XMLDocument