XML DOM Tutorial
DOM HOMEDOM Introduction
DOM Nodes
DOM Node Tree
DOM Parser
DOM Load Function
DOM Methods
DOM Accessing
DOM Node Info
DOM Node List
DOM Traversing
DOM Browsers
DOM Navigating
Manipulate Nodes
DOM Get ValuesDOM Change Nodes
DOM Remove Nodes
DOM Replace Nodes
DOM Create Nodes
DOM Add Nodes
DOM Clone Nodes
DOM XMLHttpRequest
XML DOM Reference
DOM Node TypesDOM Node
DOM NodeList
DOM NamedNodeMap
DOM Document
DOM DocumentImpl
DOM DocumentType
DOM ProcessingInstr
DOM Element
DOM Attribute
DOM Text
DOM CDATA
DOM Comment
DOM XMLHttpRequest
DOM ParseError Obj
DOM Parser Errors
DOM Summary
XML DOM Examples
DOM ExamplesDOM Validator
XML DOM Browser Differences
Browser Differences in DOM Parsing
All modern browsers support the W3C DOM specification.
However, there are some differences between browsers. One important difference is:
- The way they handle white-spaces and new lines
DOM - White Spaces and New Lines
XML often contains new line, or white space characters, between nodes. This is often the case when the document is edited by a simple editor like Notepad.
The following example (edited by Notepad) contains CR/LF (new line) between each line and two spaces in front of each child node:
<title>Everyday Italian</title>
<author>Giada De Laurentiis</author>
<year>2005</year>
<price>30.00</price>
</book>
Internet Explorer will NOT treat empty white-spaces, or new lines as text nodes, while other browsers will.
The following code fragment displays how many child nodes the root element (of books.xml) has:
Example
x=xmlDoc.documentElement.childNodes;
document.write("Number of child nodes: " + x.length);
Try it yourself »
Example explained:
- Load "books.xml" into xmlDoc using loadXMLDoc()
- Get the child nodes of the root element
- Output the number of child nodes. The result is different depending on which browser you use. IE will alert 4 child nodes, while other browsers will alert 9
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