W3C DOM activities

The Document Object Model (DOM: Document Object Model) is a platform, a language-neutral application programming interface (API) that allows programs to access and change the content, structure and structure of documents. style.

DOM Tutorials

To learn more about DOM, read our HTML DOM tutorials and XML DOM tutorials.

DOM Level 0

DOM Level 0 is not a W3C specification. It is merely a definition of equivalent functionality in Netscape Navigator 3.0 and Microsoft Internet Explorer 3.0.

Key players in the development of DOM are: ArborText, IBM, Inso EPS, JavaSoft, Microsoft, Netscape, Novell, the Object Management Group, SoftQuad, Sun Microsystems, and Texcel.

W3C's DOM Level 1 builds on this functionality.

DOM Level 1

DOM Level 1 focuses on the HTML and XML document models. It contains document navigation and processing functions.

DOM Level 1 became a W3C Recommendation on October 1, 1998.

Working draft of second version on September 29, 2000.

DOM Level 2

DOM Level 2 adds the Style Sheet Object Model to DOM Level 1 and defines functionality for manipulating style information attached to a document.

DOM Level 2 also defines an event model and provides support for XML namespaces.

As a W3C recommendation, the DOM Level 2 specification was released on November 13, 2000:

DOM Level 2 Core

DOM Level 2 Core specifies the access and An API for changing the content and structure of documents. This API also includes an interface for XML.

DOM Level 2 HTML

DOM Level 2 HTML specifies an API for manipulating the structure and content of HTML documents. (This part of the specification is still a working draft)

DOM Level 2 Views

DOM Level 2 specifies an API for accessing and changing document views. A view is a representation associated with the original document or some alternative representation.

DOM Level 2 Style

DOM Level 2 Style specifies an API for dynamically accessing and changing content style sheets.

DOM Level 2 Events

DOM Level 2 Events specifies an API for accessing document events.

DOM Level 2 Traversal-Range

DOM Level 2 Traversal-Range specifies an API for dynamically traversing and identifying content ranges in a document.

DOM Level 3

DOM Level 3 specifies the content model (DTD and Schemas) and document validation. Document loading and saving, document viewing, document formatting and key events are also specified. DOM Level 3 builds on DOM Core Level 2.

DOM Level 3 Requirements

The DOM Requirements document has been updated for Level 3 requirements and was published as a working draft on April 12, 2000.

The following DOM Level 3 working draft was published on September 1, 2000:

DOM Level 3 Core

DOM Level 3 Core provides for accessing and changing document content, An API for structure and styling.

DOM Level 3 Events

The DOM Level 3 Events API extends the functionality of the Level 2 Event API by adding new interfaces and new event sets.

DOM Level 3 Load and Save

DOM Level 3 Content Model specifies APIs for content loading and saving, content models (DTD and Schemas), and document validation support.

DOM Level 3 Views and Formatting

DOM Level 3 Views specifies the API for accessing and changing document views. A view is a representation associated with the original document or some alternative representation.

W3C DOM 规范和时间线

W3C 参考手册:

W3C DOM 首页