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  * Copyright 2012 Google Inc.
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
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  * the License at
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
package elemental.dom;
import  elemental.dom.*;

This type represents a DOM element's attribute as an object. In most DOM methods, you will probably directly retrieve the attribute as a string (e.g., Element.getAttribute() , but certain functions (e.g., Element.getAttributeNode() ) or means of iterating give Attr types.

Warning: In DOM Core 1, 2 and 3, Attr inherited from Node. This is no longer the case in DOM4. In order to bring the implementation of Attr up to specification, work is underway to change it to no longer inherit from Node . You should not be using any Node properties or methods on Attr objects. Starting in Gecko 7.0 (Firefox 7.0 / Thunderbird 7.0 / SeaMonkey 2.4) , the ones that are going to be removed output warning messages to the console. You should revise your code accordingly. See Deprecated properties and methods for a complete list.
public interface Attr extends Node {

Indicates whether the attribute is an "ID attribute". An "ID attribute" being an attribute which value is expected to be unique across a DOM Document. In HTML DOM, "id" is the only ID attribute, but XML documents could define others. Whether or not an attribute is unique is often determined by a DTD or other schema description.
  boolean isId();

The attribute's name.
  String getName();

This property has been deprecated and will be removed in the future. Since you can only get Attr objects from elements, you should already know th
This property has been deprecated and will be removed in the future; it now always returns true.
  boolean isSpecified();

The attribute's value.
  void setValue(String arg);
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