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The Document Object Model (DOM)

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The Document Object Model (DOM)

The

Document Object Model

(DOM) is an application programming interface (API) for HTML as well as

XML. The DOM maps out an entire page as a document composed of a hierarchy of nodes. Each part of

an HTML or XML page is a derivative of a node. Consider the following HTML page:

<html>

<head>

<title>Sample Page</title>

</head>

<body>

<p>Hello World!</p>

</body>

</html>

This code can be diagrammed into a hierarchy of nodes using the DOM (see Figure 1-3).

Figure 1-3

Sample Page

Hello World!

title

head

html

body

Chapter 1

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