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DOM NamedNodeMap setNamedItem() Method
NamedNodeMap ObjectExample
Set a H1's class attribute:
var btn=document.getElementsByTagName("h1")[0];
var typ=document.createAttribute("class");
typ.nodeValue="democlass";
btn.attributes.setNamedItem(typ);
var typ=document.createAttribute("class");
typ.nodeValue="democlass";
btn.attributes.setNamedItem(typ);
Before setting the attribute:
Hello world
After setting the attribute:
Hello world
Try it yourself »
Definition and Usage
The setNamedItem() method adds the specified node to the nodeMap.
If the node allready exists, it will be replaced, and the replaced node will be the return value, otherwise the return value will be null.
Browser Support
The setNamedItem() method is supported in all major browsers.
Syntax
namednodemap.setNamedItem(node)
Parameters
| Parameter | Type | Description |
|---|---|---|
| node | Node object | Required. The node you want to add/replace in the namedNodeMap collection |
Return Value
| Type | Description |
|---|---|
| Node object | The replaced node, if any, otherwise null |
Technical Details
| DOM Version | Core Level 1 |
|---|
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