XML DOM - Replacement Node

replaceChild () method replaces the specified node.

nodeValue property replaces text node text.

Try - Example

The following example uses XML files the Books.xml .
Function loadXMLDoc () , in an external JavaScript is used to load the XML file.

Replace element node
This example uses replaceChild () to replace the first <book> node.

Data replacement text node
This example uses the nodeValue property to replace the data in a text node.

Replace element node

replaceChild () method is used to replace the node.

The following code fragment replaces the first <book> element:

Examples

xmlDoc=loadXMLDoc("books.xml");

x=xmlDoc.documentElement;

//create a book element, title element and a text node
newNode=xmlDoc.createElement("book");
newTitle=xmlDoc.createElement("title");
newText=xmlDoc.createTextNode("A Notebook");

//add the text node to the title node,
newTitle.appendChild(newText);
//add the title node to the book node
newNode.appendChild(newTitle);

y=xmlDoc.getElementsByTagName("book")[0]
//replace the first book node with the new node
x.replaceChild(newNode,y);

try it"

Examples explain:

Use loadXMLDoc () to " the Books.xml " into xmlDoc
Creates a new element node <book>
Creates a new element node <title>
Create a new text node with the text "A Notebook"
To a new element node <title> add this new text node
To a new element node <book> add this new element node <title>
To replace the first <book> element node for the new <book> element node

Data replacement text node

replaceData () method is used to replace the data in a text node.

replaceData () method takes three arguments:

offset - Where to begin replacing characters. offset value begins with 0.
length - the number of characters to be replaced
string - the string to insert

Examples

xmlDoc=loadXMLDoc("books.xml");

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

x.replaceData(0,8,"Easy");

try it"

Examples explain:

Use loadXMLDoc () to " the Books.xml " into xmlDoc
Gets the first text node <title> element node
ReplaceData method using the first eight characters of the text node is replaced by "Easy"