compact2, compact3
org.w3c.dom

## Interface Node

- All Known Subinterfaces:
    Attr, CDATASection, CharacterData, Comment, Document, DocumentFragment, DocumentType, Element, Entity, EntityReference, HTMLAnchorElement, HTMLAppletElement, HTMLAreaElement, HTMLBaseElement, HTMLBaseFontElement, HTMLBodyElement, HTMLBRElement, HTMLButtonElement, HTMLDirectoryElement, HTMLDivElement, HTMLDListElement, HTMLDocument, HTMLElement, HTMLFieldSetElement, HTMLFontElement, HTMLFormElement, HTMLFrameElement, HTMLFrameSetElement, HTMLHeadElement, HTMLHeadingElement, HTMLHRElement, HTMLHtmlElement, HTMLIFrameElement, HTMLImageElement, HTMLInputElement, HTMLIsIndexElement, HTMLLabelElement, HTMLLegendElement, HTMLLIElement, HTMLLinkElement, HTMLMapElement, HTMLMenuElement, HTMLMetaElement, HTMLModElement, HTMLObjectElement, HTMLOListElement, HTMLOptGroupElement, HTMLOptionElement, HTMLParagraphElement, HTMLParamElement, HTMLPreElement, HTMLQuoteElement, HTMLScriptElement, HTMLSelectElement, HTMLStyleElement, HTMLTableCaptionElement, HTMLTableCellElement, HTMLTableColElement, HTMLTableElement, HTMLTableRowElement, HTMLTableSectionElement, HTMLTextAreaElement, HTMLTitleElement, HTMLUListElement, Notation, ProcessingInstruction, Text

      public interface Node

  The `Node` interface is the primary datatype for the entire Document Object Model. It represents a single node in the document tree. While all objects implementing the `Node` interface expose methods for dealing with children, not all objects implementing the `Node` interface may have children. For example, `Text` nodes may not have children, and adding children to such nodes results in a `DOMException` being raised.

  The attributes `nodeName`, `nodeValue` and `attributes` are included as a mechanism to get at node information without casting down to the specific derived interface. In cases where there is no obvious mapping of these attributes for a specific `nodeType` (e.g., `nodeValue` for an `Element` or `attributes` for a `Comment` ), this returns `null`. Note that the specialized interfaces may contain additional and more convenient mechanisms to get and set the relevant information.

  The values of `nodeName`, `nodeValue`, and `attributes` vary according to the node type as follows:

  Interface | nodeName | nodeValue | attributes
  --- | --- | --- | ---
  `Attr` | same as `Attr.name` | same as `Attr.value` | `null`
  `CDATASection` | `"#cdata-section"` | same as `CharacterData.data`, the content of the CDATA Section | `null`
  `Comment` | `"#comment"` | same as `CharacterData.data`, the content of the comment | `null`
  `Document` | `"#document"` | `null` | `null`
  `DocumentFragment` | `"#document-fragment"` | `null` | `null`
  `DocumentType` | same as `DocumentType.name` | `null` | `null`
  `Element` | same as `Element.tagName` | `null` | `NamedNodeMap`
  `Entity` | entity name | `null` | `null`
  `EntityReference` | name of entity referenced | `null` | `null`
  `Notation` | notation name | `null` | `null`
  `ProcessingInstruction` | same as `ProcessingInstruction.target` | same as `ProcessingInstruction.data` | `null`
  `Text` | `"#text"` | same as `CharacterData.data`, the content of the text node | `null`

  See also the Document Object Model (DOM) Level 3 Core Specification.

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static short` | `ATTRIBUTE_NODE` The node is an `Attr`.
    `static short` | `CDATA_SECTION_NODE` The node is a `CDATASection`.
    `static short` | `COMMENT_NODE` The node is a `Comment`.
    `static short` | `DOCUMENT_FRAGMENT_NODE` The node is a `DocumentFragment`.
    `static short` | `DOCUMENT_NODE` The node is a `Document`.
    `static short` | `DOCUMENT_POSITION_CONTAINED_BY` The node is contained by the reference node.
    `static short` | `DOCUMENT_POSITION_CONTAINS` The node contains the reference node.
    `static short` | `DOCUMENT_POSITION_DISCONNECTED` The two nodes are disconnected.
    `static short` | `DOCUMENT_POSITION_FOLLOWING` The node follows the reference node.
    `static short` | `DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC` The determination of preceding versus following is implementation-specific.
    `static short` | `DOCUMENT_POSITION_PRECEDING` The second node precedes the reference node.
    `static short` | `DOCUMENT_TYPE_NODE` The node is a `DocumentType`.
    `static short` | `ELEMENT_NODE` The node is an `Element`.
    `static short` | `ENTITY_NODE` The node is an `Entity`.
    `static short` | `ENTITY_REFERENCE_NODE` The node is an `EntityReference`.
    `static short` | `NOTATION_NODE` The node is a `Notation`.
    `static short` | `PROCESSING_INSTRUCTION_NODE` The node is a `ProcessingInstruction`.
    `static short` | `TEXT_NODE` The node is a `Text` node.

  - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `Node` | `appendChild(Node newChild)` Adds the node `newChild` to the end of the list of children of this node.
    `Node` | `cloneNode(boolean deep)` Returns a duplicate of this node, i.e., serves as a generic copy constructor for nodes.
    `short` | `compareDocumentPosition(Node other)` Compares the reference node, i.e.
    `NamedNodeMap` | `getAttributes()` A `NamedNodeMap` containing the attributes of this node (if it is an `Element`) or `null` otherwise.
    `String` | `getBaseURI()` The absolute base URI of this node or `null` if the implementation wasn't able to obtain an absolute URI.
    `NodeList` | `getChildNodes()` A `NodeList` that contains all children of this node.
    `Object` | `getFeature(String feature, String version)` This method returns a specialized object which implements the specialized APIs of the specified feature and version, as specified in .
    `Node` | `getFirstChild()` The first child of this node.
    `Node` | `getLastChild()` The last child of this node.
    `String` | `getLocalName()` Returns the local part of the qualified name of this node.
    `String` | `getNamespaceURI()` The namespace URI of this node, or `null` if it is unspecified (see ).
    `Node` | `getNextSibling()` The node immediately following this node.
    `String` | `getNodeName()` The name of this node, depending on its type; see the table above.
    `short` | `getNodeType()` A code representing the type of the underlying object, as defined above.
    `String` | `getNodeValue()` The value of this node, depending on its type; see the table above.
    `Document` | `getOwnerDocument()` The `Document` object associated with this node.
    `Node` | `getParentNode()` The parent of this node.
    `String` | `getPrefix()` The namespace prefix of this node, or `null` if it is unspecified.
    `Node` | `getPreviousSibling()` The node immediately preceding this node.
    `String` | `getTextContent()` This attribute returns the text content of this node and its descendants.
    `Object` | `getUserData(String key)` Retrieves the object associated to a key on a this node.
    `boolean` | `hasAttributes()` Returns whether this node (if it is an element) has any attributes.
    `boolean` | `hasChildNodes()` Returns whether this node has any children.
    `Node` | `insertBefore(Node newChild, Node refChild)` Inserts the node `newChild` before the existing child node `refChild`.
    `boolean` | `isDefaultNamespace(String namespaceURI)` This method checks if the specified `namespaceURI` is the default namespace or not.
    `boolean` | `isEqualNode(Node arg)` Tests whether two nodes are equal.
    `boolean` | `isSameNode(Node other)` Returns whether this node is the same node as the given one.
    `boolean` | `isSupported(String feature, String version)` Tests whether the DOM implementation implements a specific feature and that feature is supported by this node, as specified in .
    `String` | `lookupNamespaceURI(String prefix)` Look up the namespace URI associated to the given prefix, starting from this node.
    `String` | `lookupPrefix(String namespaceURI)` Look up the prefix associated to the given namespace URI, starting from this node.
    `void` | `normalize()` Puts all `Text` nodes in the full depth of the sub-tree underneath this `Node`, including attribute nodes, into a "normal" form where only structure (e.g., elements, comments, processing instructions, CDATA sections, and entity references) separates `Text` nodes, i.e., there are neither adjacent `Text` nodes nor empty `Text` nodes.
    `Node` | `removeChild(Node oldChild)` Removes the child node indicated by `oldChild` from the list of children, and returns it.
    `Node` | `replaceChild(Node newChild, Node oldChild)` Replaces the child node `oldChild` with `newChild` in the list of children, and returns the `oldChild` node.
    `void` | `setNodeValue(String nodeValue)` The value of this node, depending on its type; see the table above.
    `void` | `setPrefix(String prefix)` The namespace prefix of this node, or `null` if it is unspecified.
    `void` | `setTextContent(String textContent)` This attribute returns the text content of this node and its descendants.
    `Object` | `setUserData(String key, Object data, UserDataHandler handler)` Associate an object to a key on this node.

- - ### Field Detail

    - #### ELEMENT_NODE

          static final short ELEMENT_NODE

      The node is an `Element`.
      See Also:
        Constant Field Values

    - #### ATTRIBUTE_NODE

          static final short ATTRIBUTE_NODE

      The node is an `Attr`.
      See Also:
        Constant Field Values

    - #### TEXT_NODE

          static final short TEXT_NODE

      The node is a `Text` node.
      See Also:
        Constant Field Values

    - #### CDATA_SECTION_NODE

          static final short CDATA_SECTION_NODE

      The node is a `CDATASection`.
      See Also:
        Constant Field Values

    - #### ENTITY_REFERENCE_NODE

          static final short ENTITY_REFERENCE_NODE

      The node is an `EntityReference`.
      See Also:
        Constant Field Values

    - #### ENTITY_NODE

          static final short ENTITY_NODE

      The node is an `Entity`.
      See Also:
        Constant Field Values

    - #### PROCESSING_INSTRUCTION_NODE

          static final short PROCESSING_INSTRUCTION_NODE

      The node is a `ProcessingInstruction`.
      See Also:
        Constant Field Values

    - #### COMMENT_NODE

          static final short COMMENT_NODE

      The node is a `Comment`.
      See Also:
        Constant Field Values

    - #### DOCUMENT_NODE

          static final short DOCUMENT_NODE

      The node is a `Document`.
      See Also:
        Constant Field Values

    - #### DOCUMENT_TYPE_NODE

          static final short DOCUMENT_TYPE_NODE

      The node is a `DocumentType`.
      See Also:
        Constant Field Values

    - #### DOCUMENT_FRAGMENT_NODE

          static final short DOCUMENT_FRAGMENT_NODE

      The node is a `DocumentFragment`.
      See Also:
        Constant Field Values

    - #### NOTATION_NODE

          static final short NOTATION_NODE

      The node is a `Notation`.
      See Also:
        Constant Field Values

    - #### DOCUMENT_POSITION_DISCONNECTED

          static final short DOCUMENT_POSITION_DISCONNECTED

      The two nodes are disconnected. Order between disconnected nodes is always implementation-specific.
      See Also:
        Constant Field Values

    - #### DOCUMENT_POSITION_PRECEDING

          static final short DOCUMENT_POSITION_PRECEDING

      The second node precedes the reference node.
      See Also:
        Constant Field Values

    - #### DOCUMENT_POSITION_FOLLOWING

          static final short DOCUMENT_POSITION_FOLLOWING

      The node follows the reference node.
      See Also:
        Constant Field Values

    - #### DOCUMENT_POSITION_CONTAINS

          static final short DOCUMENT_POSITION_CONTAINS

      The node contains the reference node. A node which contains is always preceding, too.
      See Also:
        Constant Field Values

    - #### DOCUMENT_POSITION_CONTAINED_BY

          static final short DOCUMENT_POSITION_CONTAINED_BY

      The node is contained by the reference node. A node which is contained is always following, too.
      See Also:
        Constant Field Values

    - #### DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC

          static final short DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC

      The determination of preceding versus following is implementation-specific.
      See Also:
        Constant Field Values

  - ### Method Detail

    - #### getNodeName

          String getNodeName()

      The name of this node, depending on its type; see the table above.

    - #### getNodeValue

          String getNodeValue()
                       throws DOMException

      The value of this node, depending on its type; see the table above. When it is defined to be `null`, setting it has no effect, including if the node is read-only.
      Throws:
        `DOMException` - DOMSTRING_SIZE_ERR: Raised when it would return more characters than fit in a `DOMString` variable on the implementation platform.

    - #### setNodeValue

          void setNodeValue(String nodeValue)
                     throws DOMException

      The value of this node, depending on its type; see the table above. When it is defined to be `null`, setting it has no effect, including if the node is read-only.
      Throws:
        `DOMException` - NO_MODIFICATION_ALLOWED_ERR: Raised when the node is readonly and if it is not defined to be `null`.

    - #### getNodeType

          short getNodeType()

      A code representing the type of the underlying object, as defined above.

    - #### getParentNode

          Node getParentNode()

      The parent of this node. All nodes, except `Attr`, `Document`, `DocumentFragment`, `Entity`, and `Notation` may have a parent. However, if a node has just been created and not yet added to the tree, or if it has been removed from the tree, this is `null`.

    - #### getChildNodes

          NodeList getChildNodes()

      A `NodeList` that contains all children of this node. If there are no children, this is a `NodeList` containing no nodes.

    - #### getFirstChild

          Node getFirstChild()

      The first child of this node. If there is no such node, this returns `null`.

    - #### getLastChild

          Node getLastChild()

      The last child of this node. If there is no such node, this returns `null`.

    - #### getPreviousSibling

          Node getPreviousSibling()

      The node immediately preceding this node. If there is no such node, this returns `null`.

    - #### getNextSibling

          Node getNextSibling()

      The node immediately following this node. If there is no such node, this returns `null`.

    - #### getAttributes

          NamedNodeMap getAttributes()

      A `NamedNodeMap` containing the attributes of this node (if it is an `Element`) or `null` otherwise.

    - #### getOwnerDocument

          Document getOwnerDocument()

      The `Document` object associated with this node. This is also the `Document` object used to create new nodes. When this node is a `Document` or a `DocumentType` which is not used with any `Document` yet, this is `null`.
      Since:
        DOM Level 2

    - #### insertBefore

          Node insertBefore(Node newChild,
                            Node refChild)
                     throws DOMException

      Inserts the node `newChild` before the existing child node `refChild`. If `refChild` is `null`, insert `newChild` at the end of the list of children.
      If `newChild` is a `DocumentFragment` object, all of its children are inserted, in the same order, before `refChild`. If the `newChild` is already in the tree, it is first removed.

      Note: Inserting a node before itself is implementation dependent.

      Parameters:
        `newChild` - The node to insert.
        `refChild` - The reference node, i.e., the node before which the new node must be inserted.
      Returns:
        The node being inserted.
      Throws:
        `DOMException` - HIERARCHY_REQUEST_ERR: Raised if this node is of a type that does not allow children of the type of the `newChild` node, or if the node to insert is one of this node's ancestors or this node itself, or if this node is of type `Document` and the DOM application attempts to insert a second `DocumentType` or `Element` node.
        WRONG_DOCUMENT_ERR: Raised if `newChild` was created from a different document than the one that created this node.
        NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly or if the parent of the node being inserted is readonly.
        NOT_FOUND_ERR: Raised if `refChild` is not a child of this node.
        NOT_SUPPORTED_ERR: if this node is of type `Document`, this exception might be raised if the DOM implementation doesn't support the insertion of a `DocumentType` or `Element` node.
      Since:
        DOM Level 3

    - #### replaceChild

          Node replaceChild(Node newChild,
                            Node oldChild)
                     throws DOMException

      Replaces the child node `oldChild` with `newChild` in the list of children, and returns the `oldChild` node.
      If `newChild` is a `DocumentFragment` object, `oldChild` is replaced by all of the `DocumentFragment` children, which are inserted in the same order. If the `newChild` is already in the tree, it is first removed.

      Note: Replacing a node with itself is implementation dependent.

      Parameters:
        `newChild` - The new node to put in the child list.
        `oldChild` - The node being replaced in the list.
      Returns:
        The node replaced.
      Throws:
        `DOMException` - HIERARCHY_REQUEST_ERR: Raised if this node is of a type that does not allow children of the type of the `newChild` node, or if the node to put in is one of this node's ancestors or this node itself, or if this node is of type `Document` and the result of the replacement operation would add a second `DocumentType` or `Element` on the `Document` node.
        WRONG_DOCUMENT_ERR: Raised if `newChild` was created from a different document than the one that created this node.
        NO_MODIFICATION_ALLOWED_ERR: Raised if this node or the parent of the new node is readonly.
        NOT_FOUND_ERR: Raised if `oldChild` is not a child of this node.
        NOT_SUPPORTED_ERR: if this node is of type `Document`, this exception might be raised if the DOM implementation doesn't support the replacement of the `DocumentType` child or `Element` child.
      Since:
        DOM Level 3

    - #### removeChild

          Node removeChild(Node oldChild)
                    throws DOMException

      Removes the child node indicated by `oldChild` from the list of children, and returns it.
      Parameters:
        `oldChild` - The node being removed.
      Returns:
        The node removed.
      Throws:
        `DOMException` - NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
        NOT_FOUND_ERR: Raised if `oldChild` is not a child of this node.
        NOT_SUPPORTED_ERR: if this node is of type `Document`, this exception might be raised if the DOM implementation doesn't support the removal of the `DocumentType` child or the `Element` child.
      Since:
        DOM Level 3

    - #### appendChild

          Node appendChild(Node newChild)
                    throws DOMException

      Adds the node `newChild` to the end of the list of children of this node. If the `newChild` is already in the tree, it is first removed.
      Parameters:
        `newChild` - The node to add.If it is a `DocumentFragment` object, the entire contents of the document fragment are moved into the child list of this node
      Returns:
        The node added.
      Throws:
        `DOMException` - HIERARCHY_REQUEST_ERR: Raised if this node is of a type that does not allow children of the type of the `newChild` node, or if the node to append is one of this node's ancestors or this node itself, or if this node is of type `Document` and the DOM application attempts to append a second `DocumentType` or `Element` node.
        WRONG_DOCUMENT_ERR: Raised if `newChild` was created from a different document than the one that created this node.
        NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly or if the previous parent of the node being inserted is readonly.
        NOT_SUPPORTED_ERR: if the `newChild` node is a child of the `Document` node, this exception might be raised if the DOM implementation doesn't support the removal of the `DocumentType` child or `Element` child.
      Since:
        DOM Level 3

    - #### hasChildNodes

          boolean hasChildNodes()

      Returns whether this node has any children.
      Returns:
        Returns `true` if this node has any children, `false` otherwise.

    - #### cloneNode

          Node cloneNode(boolean deep)

      Returns a duplicate of this node, i.e., serves as a generic copy constructor for nodes. The duplicate node has no parent ( `parentNode` is `null`) and no user data. User data associated to the imported node is not carried over. However, if any `UserDataHandlers` has been specified along with the associated data these handlers will be called with the appropriate parameters before this method returns.
      Cloning an `Element` copies all attributes and their values, including those generated by the XML processor to represent defaulted attributes, but this method does not copy any children it contains unless it is a deep clone. This includes text contained in an the `Element` since the text is contained in a child `Text` node. Cloning an `Attr` directly, as opposed to be cloned as part of an `Element` cloning operation, returns a specified attribute (`specified` is `true`). Cloning an `Attr` always clones its children, since they represent its value, no matter whether this is a deep clone or not. Cloning an `EntityReference` automatically constructs its subtree if a corresponding `Entity` is available, no matter whether this is a deep clone or not. Cloning any other type of node simply returns a copy of this node.
      Note that cloning an immutable subtree results in a mutable copy, but the children of an `EntityReference` clone are readonly . In addition, clones of unspecified `Attr` nodes are specified. And, cloning `Document`, `DocumentType`, `Entity`, and `Notation` nodes is implementation dependent.
      Parameters:
        `deep` - If `true`, recursively clone the subtree under the specified node; if `false`, clone only the node itself (and its attributes, if it is an `Element`).
      Returns:
        The duplicate node.

    - #### normalize

          void normalize()

      Puts all `Text` nodes in the full depth of the sub-tree underneath this `Node`, including attribute nodes, into a "normal" form where only structure (e.g., elements, comments, processing instructions, CDATA sections, and entity references) separates `Text` nodes, i.e., there are neither adjacent `Text` nodes nor empty `Text` nodes. This can be used to ensure that the DOM view of a document is the same as if it were saved and re-loaded, and is useful when operations (such as XPointer [XPointer] lookups) that depend on a particular document tree structure are to be used. If the parameter "normalize-characters" of the `DOMConfiguration` object attached to the `Node.ownerDocument` is `true`, this method will also fully normalize the characters of the `Text` nodes.

      Note: In cases where the document contains `CDATASections`, the normalize operation alone may not be sufficient, since XPointers do not differentiate between `Text` nodes and `CDATASection` nodes.

      Since:
        DOM Level 3

    - #### isSupported

          boolean isSupported(String feature,
                              String version)

      Tests whether the DOM implementation implements a specific feature and that feature is supported by this node, as specified in .
      Parameters:
        `feature` - The name of the feature to test.
        `version` - This is the version number of the feature to test.
      Returns:
        Returns `true` if the specified feature is supported on this node, `false` otherwise.
      Since:
        DOM Level 2

    - #### getNamespaceURI

          String getNamespaceURI()

      The namespace URI of this node, or `null` if it is unspecified (see ).
      This is not a computed value that is the result of a namespace lookup based on an examination of the namespace declarations in scope. It is merely the namespace URI given at creation time.
      For nodes of any type other than `ELEMENT_NODE` and `ATTRIBUTE_NODE` and nodes created with a DOM Level 1 method, such as `Document.createElement()`, this is always `null`.

      Note: Per the Namespaces in XML Specification [XML Namespaces] an attribute does not inherit its namespace from the element it is attached to. If an attribute is not explicitly given a namespace, it simply has no namespace.

      Since:
        DOM Level 2

    - #### getPrefix

          String getPrefix()

      The namespace prefix of this node, or `null` if it is unspecified. When it is defined to be `null`, setting it has no effect, including if the node is read-only.
      Note that setting this attribute, when permitted, changes the `nodeName` attribute, which holds the qualified name, as well as the `tagName` and `name` attributes of the `Element` and `Attr` interfaces, when applicable.
      Setting the prefix to `null` makes it unspecified, setting it to an empty string is implementation dependent.
      Note also that changing the prefix of an attribute that is known to have a default value, does not make a new attribute with the default value and the original prefix appear, since the `namespaceURI` and `localName` do not change.
      For nodes of any type other than `ELEMENT_NODE` and `ATTRIBUTE_NODE` and nodes created with a DOM Level 1 method, such as `createElement` from the `Document` interface, this is always `null`.
      Since:
        DOM Level 2

    - #### setPrefix

          void setPrefix(String prefix)
                  throws DOMException

      The namespace prefix of this node, or `null` if it is unspecified. When it is defined to be `null`, setting it has no effect, including if the node is read-only.
      Note that setting this attribute, when permitted, changes the `nodeName` attribute, which holds the qualified name, as well as the `tagName` and `name` attributes of the `Element` and `Attr` interfaces, when applicable.
      Setting the prefix to `null` makes it unspecified, setting it to an empty string is implementation dependent.
      Note also that changing the prefix of an attribute that is known to have a default value, does not make a new attribute with the default value and the original prefix appear, since the `namespaceURI` and `localName` do not change.
      For nodes of any type other than `ELEMENT_NODE` and `ATTRIBUTE_NODE` and nodes created with a DOM Level 1 method, such as `createElement` from the `Document` interface, this is always `null`.
      Throws:
        `DOMException` - INVALID_CHARACTER_ERR: Raised if the specified prefix contains an illegal character according to the XML version in use specified in the `Document.xmlVersion` attribute.
        NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
        NAMESPACE_ERR: Raised if the specified `prefix` is malformed per the Namespaces in XML specification, if the `namespaceURI` of this node is `null`, if the specified prefix is "xml" and the `namespaceURI` of this node is different from " http://www.w3.org/XML/1998/namespace", if this node is an attribute and the specified prefix is "xmlns" and the `namespaceURI` of this node is different from "http://www.w3.org/2000/xmlns/", or if this node is an attribute and the `qualifiedName` of this node is "xmlns" [XML Namespaces] .
      Since:
        DOM Level 2

    - #### getLocalName

          String getLocalName()

      Returns the local part of the qualified name of this node.
      For nodes of any type other than `ELEMENT_NODE` and `ATTRIBUTE_NODE` and nodes created with a DOM Level 1 method, such as `Document.createElement()`, this is always `null`.
      Since:
        DOM Level 2

    - #### hasAttributes

          boolean hasAttributes()

      Returns whether this node (if it is an element) has any attributes.
      Returns:
        Returns `true` if this node has any attributes, `false` otherwise.
      Since:
        DOM Level 2

    - #### getBaseURI

          String getBaseURI()

      The absolute base URI of this node or `null` if the implementation wasn't able to obtain an absolute URI. This value is computed as described in . However, when the `Document` supports the feature "HTML" [DOM Level 2 HTML] , the base URI is computed using first the value of the href attribute of the HTML BASE element if any, and the value of the `documentURI` attribute from the `Document` interface otherwise.
      Since:
        DOM Level 3

    - #### compareDocumentPosition

          short compareDocumentPosition(Node other)
                                 throws DOMException

      Compares the reference node, i.e. the node on which this method is being called, with a node, i.e. the one passed as a parameter, with regard to their position in the document and according to the document order.
      Parameters:
        `other` - The node to compare against the reference node.
      Returns:
        Returns how the node is positioned relatively to the reference node.
      Throws:
        `DOMException` - NOT_SUPPORTED_ERR: when the compared nodes are from different DOM implementations that do not coordinate to return consistent implementation-specific results.
      Since:
        DOM Level 3

    - #### getTextContent

          String getTextContent()
                         throws DOMException

      This attribute returns the text content of this node and its descendants. When it is defined to be `null`, setting it has no effect. On setting, any possible children this node may have are removed and, if it the new string is not empty or `null`, replaced by a single `Text` node containing the string this attribute is set to.
      On getting, no serialization is performed, the returned string does not contain any markup. No whitespace normalization is performed and the returned string does not contain the white spaces in element content (see the attribute `Text.isElementContentWhitespace`). Similarly, on setting, no parsing is performed either, the input string is taken as pure textual content.
      The string returned is made of the text content of this node depending on its type, as defined below:

      Node type | Content
      --- | ---
      ELEMENT_NODE, ATTRIBUTE_NODE, ENTITY_NODE, ENTITY_REFERENCE_NODE, DOCUMENT_FRAGMENT_NODE | concatenation of the `textContent` attribute value of every child node, excluding COMMENT_NODE and PROCESSING_INSTRUCTION_NODE nodes. This is the empty string if the node has no children.
      TEXT_NODE, CDATA_SECTION_NODE, COMMENT_NODE, PROCESSING_INSTRUCTION_NODE | `nodeValue`
      DOCUMENT_NODE, DOCUMENT_TYPE_NODE, NOTATION_NODE | null

      Throws:
        `DOMException` - DOMSTRING_SIZE_ERR: Raised when it would return more characters than fit in a `DOMString` variable on the implementation platform.
      Since:
        DOM Level 3

    - #### setTextContent

          void setTextContent(String textContent)
                       throws DOMException

      This attribute returns the text content of this node and its descendants. When it is defined to be `null`, setting it has no effect. On setting, any possible children this node may have are removed and, if it the new string is not empty or `null`, replaced by a single `Text` node containing the string this attribute is set to.
      On getting, no serialization is performed, the returned string does not contain any markup. No whitespace normalization is performed and the returned string does not contain the white spaces in element content (see the attribute `Text.isElementContentWhitespace`). Similarly, on setting, no parsing is performed either, the input string is taken as pure textual content.
      The string returned is made of the text content of this node depending on its type, as defined below:

      Node type | Content
      --- | ---
      ELEMENT_NODE, ATTRIBUTE_NODE, ENTITY_NODE, ENTITY_REFERENCE_NODE, DOCUMENT_FRAGMENT_NODE | concatenation of the `textContent` attribute value of every child node, excluding COMMENT_NODE and PROCESSING_INSTRUCTION_NODE nodes. This is the empty string if the node has no children.
      TEXT_NODE, CDATA_SECTION_NODE, COMMENT_NODE, PROCESSING_INSTRUCTION_NODE | `nodeValue`
      DOCUMENT_NODE, DOCUMENT_TYPE_NODE, NOTATION_NODE | null

      Throws:
        `DOMException` - NO_MODIFICATION_ALLOWED_ERR: Raised when the node is readonly.
      Since:
        DOM Level 3

    - #### isSameNode

          boolean isSameNode(Node other)

      Returns whether this node is the same node as the given one.
      This method provides a way to determine whether two `Node` references returned by the implementation reference the same object. When two `Node` references are references to the same object, even if through a proxy, the references may be used completely interchangeably, such that all attributes have the same values and calling the same DOM method on either reference always has exactly the same effect.
      Parameters:
        `other` - The node to test against.
      Returns:
        Returns `true` if the nodes are the same, `false` otherwise.
      Since:
        DOM Level 3

    - #### lookupPrefix

          String lookupPrefix(String namespaceURI)

      Look up the prefix associated to the given namespace URI, starting from this node. The default namespace declarations are ignored by this method.
      See for details on the algorithm used by this method.
      Parameters:
        `namespaceURI` - The namespace URI to look for.
      Returns:
        Returns an associated namespace prefix if found or `null` if none is found. If more than one prefix are associated to the namespace prefix, the returned namespace prefix is implementation dependent.
      Since:
        DOM Level 3

    - #### isDefaultNamespace

          boolean isDefaultNamespace(String namespaceURI)

      This method checks if the specified `namespaceURI` is the default namespace or not.
      Parameters:
        `namespaceURI` - The namespace URI to look for.
      Returns:
        Returns `true` if the specified `namespaceURI` is the default namespace, `false` otherwise.
      Since:
        DOM Level 3

    - #### lookupNamespaceURI

          String lookupNamespaceURI(String prefix)

      Look up the namespace URI associated to the given prefix, starting from this node.
      See for details on the algorithm used by this method.
      Parameters:
        `prefix` - The prefix to look for. If this parameter is `null`, the method will return the default namespace URI if any.
      Returns:
        Returns the associated namespace URI or `null` if none is found.
      Since:
        DOM Level 3

    - #### isEqualNode

          boolean isEqualNode(Node arg)

      Tests whether two nodes are equal.
      This method tests for equality of nodes, not sameness (i.e., whether the two nodes are references to the same object) which can be tested with `Node.isSameNode()`. All nodes that are the same will also be equal, though the reverse may not be true.
      Two nodes are equal if and only if the following conditions are satisfied:
      - The two nodes are of the same type.
      - The following string attributes are equal: `nodeName`, `localName`, `namespaceURI`, `prefix`, `nodeValue` . This is: they are both `null`, or they have the same length and are character for character identical.
      - The `attributes` `NamedNodeMaps` are equal. This is: they are both `null`, or they have the same length and for each node that exists in one map there is a node that exists in the other map and is equal, although not necessarily at the same index.
      - The `childNodes` `NodeLists` are equal. This is: they are both `null`, or they have the same length and contain equal nodes at the same index. Note that normalization can affect equality; to avoid this, nodes should be normalized before being compared.
      For two `DocumentType` nodes to be equal, the following conditions must also be satisfied:
      - The following string attributes are equal: `publicId`, `systemId`, `internalSubset`.
      - The `entities` `NamedNodeMaps` are equal.
      - The `notations` `NamedNodeMaps` are equal.
      On the other hand, the following do not affect equality: the `ownerDocument`, `baseURI`, and `parentNode` attributes, the `specified` attribute for `Attr` nodes, the `schemaTypeInfo` attribute for `Attr` and `Element` nodes, the `Text.isElementContentWhitespace` attribute for `Text` nodes, as well as any user data or event listeners registered on the nodes.

      Note: As a general rule, anything not mentioned in the description above is not significant in consideration of equality checking. Note that future versions of this specification may take into account more attributes and implementations conform to this specification are expected to be updated accordingly.

      Parameters:
        `arg` - The node to compare equality with.
      Returns:
        Returns `true` if the nodes are equal, `false` otherwise.
      Since:
        DOM Level 3

    - #### getFeature

          Object getFeature(String feature,
                            String version)

      This method returns a specialized object which implements the specialized APIs of the specified feature and version, as specified in . The specialized object may also be obtained by using binding-specific casting methods but is not necessarily expected to, as discussed in . This method also allow the implementation to provide specialized objects which do not support the `Node` interface.
      Parameters:
        `feature` - The name of the feature requested. Note that any plus sign "+" prepended to the name of the feature will be ignored since it is not significant in the context of this method.
        `version` - This is the version number of the feature to test.
      Returns:
        Returns an object which implements the specialized APIs of the specified feature and version, if any, or `null` if there is no object which implements interfaces associated with that feature. If the `DOMObject` returned by this method implements the `Node` interface, it must delegate to the primary core `Node` and not return results inconsistent with the primary core `Node` such as attributes, childNodes, etc.
      Since:
        DOM Level 3

    - #### setUserData

          Object setUserData(String key,
                             Object data,
                             UserDataHandler handler)

      Associate an object to a key on this node. The object can later be retrieved from this node by calling `getUserData` with the same key.
      Parameters:
        `key` - The key to associate the object to.
        `data` - The object to associate to the given key, or `null` to remove any existing association to that key.
        `handler` - The handler to associate to that key, or `null`.
      Returns:
        Returns the `DOMUserData` previously associated to the given key on this node, or `null` if there was none.
      Since:
        DOM Level 3

    - #### getUserData

          Object getUserData(String key)

      Retrieves the object associated to a key on a this node. The object must first have been set to this node by calling `setUserData` with the same key.
      Parameters:
        `key` - The key the object is associated to.
      Returns:
        Returns the `DOMUserData` associated to the given key on this node, or `null` if there was none.
      Since:
        DOM Level 3

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