Practical Web Technologies

11.3. The DOM Core

11.3.1. What is the DOM Core?

Supporting the standard, particularly the W3C DOM, is perhaps the most critical long-term requirement for the next generation of platform- and device-independent Web applications. The DOM has three level specifications and each level consists of different modules and documents:

W3C DOM, level 1 (two documents – September 2000):

DOM Level 1 Core

DOM Level 1 HTML

W3C DOM, level 2 (four documents – November 2000):

DOM Level 2 Core

DOM Level 2 HTML

DOM Level 2 Events

DOM Level 2 Style

W3C DOM, level 3 (two documents – September 2001):

DOM Level 3 Core

DOM Level 3 Events

Most of the documents are well over 100 pages long. At the time of writing, most browsers are still struggling to fully implement levels ...