The HTML DOM Attribute Object
The Attr Object
In the HTML DOM, the Attr object represents an HTML attribute.
An HTML attribute always belongs to an HTML element.
The NamedNodeMap Object
In the HTML DOM, the NamedNodeMap object represents an unordered collection of an elements attribute nodes.
Nodes in a NamedNodeMap can be accessed by name or by index (number).
Properties and Methods
| Property / Method | Description |
|---|---|
| attr.isId | Returns true if the attribute is of type Id, otherwise it returns false |
| attr.name | Returns the name of an attribute |
| attr.value | Sets or returns the value of the attribute |
| attr.specified | Returns true if the attribute has been specified, otherwise it returns false |
| nodemap.getNamedItem() | Returns a specified attribute node from a NamedNodeMap |
| nodemap.item() | Returns the attribute node at a specified index in a NamedNodeMap |
| nodemap.length | Returns the number of attribute nodes in a NamedNodeMap |
| nodemap.removeNamedItem() | Removes a specified attribute node |
| nodemap.setNamedItem() | Sets the specified attribute node (by name) |
