Get the name of the first attribute of a <button> element:
The result of x could be:
More "Try it Yourself" examples below.
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:
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.
|index||Number||Required. The index of the node in the NamedNodeMap you want to return|
|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|
Change the value of a <button> element's second attribute: