什麼是 HTML DOM?

The HTML DOM (Document Object Model) is a standard object model and programming interface for HTML. It defines:

• The HTML elements as objects
• The properties of all HTML elements
• The methods to access all HTML elements
• The events for all HTML elements

The HTML DOM is a standard for how to get, change, add, or delete HTML elements

With the HTML DOM, JavaScript can access and change all the elements of an HTML document.

資料來源: http://www.w3schools.com/js/js_htmldom.asp