Tutorials References Exercises Bootcamps Videos Menu
Sign Up Create Website Get Certified Upgrade

XML Tutorial

XML HOME XML Introduction XML How to use XML Tree XML Syntax XML Elements XML Attributes XML Namespaces XML Display XML HttpRequest XML Parser XML DOM XML XPath XML XSLT XML XQuery XML XLink XML Validator XML DTD XML Schema XML Server XML Examples XML Quiz XML Certificate


AJAX Introduction AJAX XMLHttp AJAX Request AJAX Response AJAX XML File AJAX PHP AJAX ASP AJAX Database AJAX Applications AJAX Examples


DOM Introduction DOM Nodes DOM Accessing DOM Node Info DOM Node List DOM Traversing DOM Navigating DOM Get Values DOM Change Nodes DOM Remove Nodes DOM Replace Nodes DOM Create Nodes DOM Add Nodes DOM Clone Nodes DOM Examples

XPath Tutorial

XPath Introduction XPath Nodes XPath Syntax XPath Axes XPath Operators XPath Examples

XSLT Tutorial

XSLT Introduction XSL Languages XSLT Transform XSLT <template> XSLT <value-of> XSLT <for-each> XSLT <sort> XSLT <if> XSLT <choose> XSLT Apply XSLT on the Client XSLT on the Server XSLT Edit XML XSLT Examples

XQuery Tutorial

XQuery Introduction XQuery Example XQuery FLWOR XQuery HTML XQuery Terms XQuery Syntax XQuery Add XQuery Select XQuery Functions


DTD Introduction DTD Building Blocks DTD Elements DTD Attributes DTD Elements vs Attr DTD Entities DTD Examples

XSD Schema

XSD Introduction XSD How To XSD <schema> XSD Elements XSD Attributes XSD Restrictions XSD Complex Elements XSD Empty XSD Elements-only XSD Text-only XSD Mixed XSD Indicators XSD <any> XSD <anyAttribute> XSD Substitution XSD Example

XSD Data Types

XSD String XSD Date/Time XSD Numeric XSD Misc XSD Reference

Web Services



DOM Node Types DOM Node DOM NodeList DOM NamedNodeMap DOM Document DOM Element DOM Attribute DOM Text DOM CDATA DOM Comment DOM XMLHttpRequest DOM Parser XSLT Elements XSLT/XPath Functions

XML DOM Add Nodes

Add a Node - appendChild()

The appendChild() method adds a child node to an existing node.

The new node is added (appended) after any existing child nodes.

Note: Use insertBefore() if the position of the node is important.

This code fragment creates an element (<edition>), and adds it after the last child of the first <book> element:


newEle = xmlDoc.createElement("edition");

Try it Yourself »

Example explained:

  1. Suppose books.xml is loaded into xmlDoc
  2. Create a new node <edition>
  3. Append the node to the first <book> element

This code fragment does the same as above, but the new element is added with a value:


newEle = xmlDoc.createElement("edition");

Try it Yourself »

Example explained:

  1. Suppose books.xml is loaded into xmlDoc
  2. Create a new node <edition>
  3. Create a new text node "first"
  4. Append the text node to the <edition> node
  5. Append the <addition> node to the <book> element

Insert a Node - insertBefore()

The insertBefore() method inserts a node before a specified child node.

This method is useful when the position of the added node is important:


newNode = xmlDoc.createElement("book");

x = xmlDoc.documentElement;
y = xmlDoc.getElementsByTagName("book")[3];

Try it Yourself »

Example explained:

  1. Suppose books.xml is loaded into xmlDoc
  2. Create a new element node <book>
  3. Insert the new node in front of the last <book> element node

If the second parameter of insertBefore() is null, the new node will be added after the last existing child node.

x.insertBefore(newNode,null) and x.appendChild(newNode) will both append a new child node to x.

Add a New Attribute

The setAttribute() method sets the value of an attribute.


Try it Yourself »

Example explained:

  1. Suppose books.xml has been loaded into xmlDoc
  2. Set the value of the attribute "edition" to "first" for the first <book> element

There is no method called add Attribute()
The setAttribute() will create a new attribute if the attribute does not exist.

Note: If the attribute already exists, the setAttribute() method will overwrite the existing value.

Add Text to a Text Node - insertData()

The insertData() method inserts data into an existing text node.

The insertData() method has two parameters:

  • offset - Where to begin inserting characters (starts at zero)
  • string - The string to insert

The following code fragment will add "Easy" to the text node of the first <title> element of the loaded XML:


xmlDoc.getElementsByTagName("title")[0].childNodes[0].insertData(0,"Easy ");
Try it Yourself »