XML DOM replaceChild()
Method
Definition and Usage
The replaceChild()
method replaces a child node with another node.
If successful, the function returns the replaced node; if it fails, it returns NULL.
Syntax
Parameter | Description |
---|---|
new_node | Required. Specifies the new node. |
old_node | Required. Specifies the child node to be replaced. |
Example
The following code snippet uses loadXMLDoc() to load "books.xml" into xmlDoc and replaces the first <book>
element:
Example
xmlDoc=loadXMLDoc("books.xml");
x=xmlDoc.documentElement;
// Create book element, title element, and text node
newNode=xmlDoc.createElement("book");
newTitle=xmlDoc.createElement("title");
newText=xmlDoc.createTextNode("A Notebook");
// Append text node to title node
newTitle.appendChild(newText);
// Append title node to book node
newNode.appendChild(newTitle);
y=xmlDoc.getElementsByTagName("book")[0]
// Replace the first book node with the new node
x.replaceChild(newNode,y);
z=xmlDoc.getElementsByTagName("title");
for (i=0;i<z.length;i++)
{
document.write(z[i].childNodes[0].nodeValue);
document.write("<br>");
}