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HTML DOM item() Method

❮ Attribute Object

Example

Get the name of the first attribute of a <button> element:

var x = document.getElementsByTagName("BUTTON")[0].attributes.item(0).nodeName;
Try it Yourself »

More "Try it Yourself" examples below.


Definition and Usage

The item() method returns the node at the specified index in a NamedNodeMap, as a Node object.

The nodes are sorted as they appear in the source code, and the index starts at 0.

Note: There are two ways to access an attribute node at the specified index in a NamedNodeMap:

This syntax:

document.getElementsByTagName("BUTTON")[0].attributes.item(1);   // The 2nd attributeTry it

Will produce the same result as this syntax:

document.getElementsByTagName("BUTTON")[0].attributes[1];        // The 2nd attributeTry it

You can use whatever method you like, however, the most common method is [index].

Tip: Use the length property to return the number of nodes in a NamedNodeMap object.


Browser Support

Method
item() Yes Yes Yes Yes Yes


Syntax

namednodemap.item(index)

or simply:

namednodemap[index]

Parameter Values

Parameter Type Description
index Number Required. The index of the node in the NamedNodeMap you want to return

Technical Details

Return Value: A Node object, representing the attribute node at the specified index.

Note: Returns null if the index number is out of range
DOM Version Core Level 1

More Examples

Example

Change the value of a <button> element's second attribute:

document.getElementsByTagName("BUTTON")[0].attributes[1].value = "newClass";
Try it Yourself »

❮ Attribute Object