Douglas Crockford: An Inconvenient API - The Theory of the DOM

Douglas Crockford(JavaScript Architect, Yahoo),  in 2006, explains about the theory of the DOM.

This is the second part of 3 part-video series. Slides can be downloaded at http://yuiblog.com/assets/crockford/theory.zip

Understanding the history of the DOM and understanding its role is preliminary to any web application engineer. The DOM is an object representation of the html document downloaded and rendered by the browser. This Object Model provides a way for the frontend engineer to script/program the page and render dynamic aspects.