XML Basic
XML HOMEXML Introduction
XML How to use
XML Tree
XML Syntax
XML Elements
XML Attributes
XML Validation
XML Validator
XML Viewing
XML CSS
XML XSLT
XML JavaScript
XML HTTP RequestXML Parser
XML DOM
XML to HTML
XML Applications
XML Advanced
XML NamespacesXML CDATA
XML Encoding
XML Server
XML DOM Advanced
XML Don't
XML Technologies
XML in Real Life
XML Editors
XML Summary
XML Examples
XML ExamplesXML Quiz
XML Certificate
XML Parser
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All modern browsers have a built-in XML parser.
An XML parser converts an XML document into an XML DOM object - which can then be manipulated with a JavaScript.
Parse an XML Document
The following code fragment parses an XML document into an XML DOM object:
| if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.open("GET","books.xml",false); xmlhttp.send(); xmlDoc=xmlhttp.responseXML; |
Parse an XML String
The following code fragment parses an XML string into an XML DOM object:
| txt="<bookstore><book>"; txt=txt+"<title>Everyday Italian</title>"; txt=txt+"<author>Giada De Laurentiis</author>"; txt=txt+"<year>2005</year>"; txt=txt+"</book></bookstore>"; if (window.DOMParser) { parser=new DOMParser(); xmlDoc=parser.parseFromString(txt,"text/xml"); } else // Internet Explorer { xmlDoc=new ActiveXObject("Microsoft.XMLDOM"); xmlDoc.async="false"; xmlDoc.loadXML(txt); } |
Note: Internet Explorer uses the loadXML() method to parse an XML string, while other browsers use the DOMParser object.
Access Across Domains
For security reasons, modern browsers do not allow access across domains.
This means, that both the web page and the XML file it tries to load, must be located on the same server.
The XML DOM
In the next chapter you will learn how to access and retrieve data from the XML DOM object.
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