DOMImplementation

The DOMImplementation interface represent an object providing methods which are not dependent on any particular document. Such an object is returned by the Document.implementation property.

Property

This interface has no specific property and doesn't inherit any.

Methods

No inherited method.

DOMImplementation.createDocument()

Creates and returns an XMLDocument.

DOMImplementation.createDocumentType()

Creates and returns a DocumentType.

DOMImplementation.createHTMLDocument()

Creates and returns an HTML Document.

DOMImplementation.hasFeature()

Returns a Boolean indicating if a given feature is supported or not. This function is unreliable and kept for compatibility purpose alone: except for SVG-related queries, it always returns true. Old browsers are very inconsistent in their behavior.

Specifications

Specification	Status	Comment
DOM The definition of 'DOMImplementation' in that specification.	Living Standard	Removed the getFeature() method. Added the createHTMLDocument() method. Modified the return type of createDocument() from Document to XMLDocument.
Document Object Model (DOM) Level 3 Core Specification The definition of 'DOMImplementation' in that specification.	Recommendation	Added the getFeature() method (never implemented by any user agent).
Document Object Model (DOM) Level 2 Core Specification The definition of 'DOMImplementation' in that specification.	Recommendation	Added the createDocument() and createDocumentType() methods.
Document Object Model (DOM) Level 1 Specification The definition of 'DOMImplementation' in that specification.	Recommendation	Initial definition.

Browser compatibility

[1] Since Gecko 19, hasFeature() mostly returns true.

See also

• The DOM interfaces index.