w3schools
  
HOME HTML CSS XML JAVASCRIPT ASP PHP SQL MORE...   References Examples Forum About

XML DOM Get Node Values

« Previous Next Chapter »

The nodeValue property is used to get the text value of a node.

The getAttribute() method returns the value of an attribute.


Get the Value of an Element

In the DOM, everything is a node. Element nodes does not have a text value.

The text of an element node is stored in a child node. This node is called a text node.

The way to get the text of an element, is to get the value of the child node (text node).


Get an Element Value

The getElementsByTagName() method returns a node list containing all elements with the specified tag name in the same order as they appear in the source document.

The following code loads "books.xml" into xmlDoc using loadXMLDoc() and retrieves the first <title> element:

xmlDoc=loadXMLDoc("books.xml");

x=xmlDoc.getElementsByTagName("title")[0];

The childNodes property returns a list of child nodes. The <title> element has only one child node. It is a text node.

The following code retrieves the text node of the <title> element:

x=xmlDoc.getElementsByTagName("title")[0];
y=x.childNodes[0];

The nodeValue property returns the text value of the text node:

Example

x=xmlDoc.getElementsByTagName("title")[0];
y=x.childNodes[0];
txt=y.nodeValue;

Try it yourself »

Result:  txt = "Everyday Italian"

Loop through all <title> elements: Try it yourself


Get the Value of an Attribute

In the DOM, attributes are nodes. Unlike element nodes, attribute nodes have text values.

The way to get the value of an attribute, is to get its text value.

This can be done using the getAttribute() method or using the nodeValue property of the attribute node.


Get an Attribute Value - getAttribute()

The getAttribute() method returns an attribute value.

The following code retrieves the text value of the "lang" attribute of the first <title> element:

Example

xmlDoc=loadXMLDoc("books.xml");

txt=xmlDoc.getElementsByTagName("title")[0].getAttribute("lang");

Try it yourself »

Result:  txt = "en"

Example explained:

  1. Load "books.xml" into xmlDoc using loadXMLDoc()
  2. Set the txt variable to be the value of the "lang" attribute of the first title element node

Loop through all <book> elements and get their "category" attributes: Try it yourself


Get an Attribute Value - getAttributeNode()

The getAttributeNode() method returns an attribute node.

The following code retrieves the text value of the "lang" attribute of the first <title> element:

Example

xmlDoc=loadXMLDoc("books.xml");

x=xmlDoc.getElementsByTagName("title")[0].getAttributeNode("lang");
txt=x.nodeValue;

Try it yourself »

Result:  txt = "en"

Example explained:

  1. Load "books.xml" into xmlDoc using loadXMLDoc()
  2. Get the "lang" attribute node of the first <title> element node
  3. Set the txt variable to be the value of the attribute

Loop through all <book> elements and get their "category" attributes: Try it yourself


« Previous Next Chapter »


Make your web applications look like a million bucks

FusionCharts   

Most web applications today use boring methods to present data to their viewers using grids or simple HTML tables. FusionCharts induces "life" into the web applications by converting monotonous data into lively charts, gauges & maps.

FusionCharts works with all technologies like ASP, ASP.NET, PHP, ColdFusion, Ruby on Rails, JSP, HTML pages etc. and connects to any database to render animated & interactive charts. It takes less than 15 minutes and no expertise whatsoever to build your first chart and just a glance of it to captivate your audience. This fact is endorsed by our 12,000 customers and 150,000 users which include a majority of the Fortune 500 companies. And yeah, your applications could look like a million bucks by spending just $69.

So go ahead, download your copy of FusionCharts and start "wow-ing" your customers now!



W3Schools Certification

W3Schools' Online Certification Program

The perfect solution for professionals who need to balance work, family, and career building.

More than 4000 certificates already issued!

The HTML Certificate documents your knowledge of HTML, XHTML, and CSS.

The JavaScript Certificate documents your knowledge of JavaScript and HTML DOM.

The XML Certificate documents your knowledge of XML, XML DOM and XSLT.

The ASP Certificate documents your knowledge of ASP, SQL, and ADO.

The PHP Certificate documents your knowledge of PHP and SQL (MySQL).

WEB HOSTING
Best Web Hosting
PHP MySQL Hosting
Top 10 Web Hosting
UK Reseller Hosting
Web Hosting
FREE Web Hosting
Top Web Hosting
Windows Hosting
WEB BUILDING
XML Editor – Free Trial!
FREE Flash Website
FREE Web Templates
FLIGHT TICKETS
Find the cheapest flight
to any destination now!
EDUCATION
US Web Design Schools
HTML Certification
JavaScript Certification
XML Certification
PHP Certification
ASP Certification
STATISTICS
Browser Statistics
Browser OS
Browser Display