XML DOM replaceChild()Methods
Element object
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
elementNode.replaceChild(new_node,old_node)
| Parameter | Description |
|---|---|
| new_node | Required. Specifies the new node. |
| old_node | Required. Specifies the child node to be replaced. |
Example
The following code snippet usesloadXMLDoc()put "books.xmlLoad into xmlDoc, and replace the first <book> element:
Example
xmlDoc=loadXMLDoc("books.xml");
x=xmlDoc.documentElement;
//Create the book element, title element, and text node
newNode=xmlDoc.createElement("book");
newTitle=xmlDoc.createElement("title");
newText=xmlDoc.createTextNode("A Notebook");
//Add a 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 a 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>");
}
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