Node
Node
is an interface from which a number of DOM API object types inherit. It allows those types to be treated similarly; for example, inheriting the same set of methods, or being tested in the same way.
Documentation Node by Mozilla Contributors, licensed under CC-BY-SA 2.5.
Static Members
ELEMENT_NODE: Int
ATTRIBUTE_NODE: Int
TEXT_NODE: Int
CDATA_SECTION_NODE: Int
ENTITY_REFERENCE_NODE: Int
ENTITY_NODE: Int
PROCESSING_INSTRUCTION_NODE: Int
COMMENT_NODE: Int
DOCUMENT_NODE: Int
DOCUMENT_TYPE_NODE: Int
DOCUMENT_FRAGMENT_NODE: Int
NOTATION_NODE: Int
DOCUMENT_POSITION_DISCONNECTED: Int
DOCUMENT_POSITION_PRECEDING: Int
DOCUMENT_POSITION_FOLLOWING: Int
DOCUMENT_POSITION_CONTAINS: Int
DOCUMENT_POSITION_CONTAINED_BY: Int
DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC: Int
Instance Members
nodeType: Int
Returns an unsigned short
representing the type of the node. Possible values are:
ELEMENT_NODE |
1 |
ATTRIBUTE_NODE (deprecated) |
2 |
TEXT_NODE |
3 |
CDATA_SECTION_NODE (deprecated) |
4 |
ENTITY_REFERENCE_NODE (deprecated) |
5 |
ENTITY_NODE (deprecated) |
6 |
PROCESSING_INSTRUCTION_NODE |
7 |
COMMENT_NODE |
8 |
DOCUMENT_NODE |
9 |
DOCUMENT_TYPE_NODE |
10 |
DOCUMENT_FRAGMENT_NODE |
11 |
NOTATION_NODE (deprecated) |
12 |
nodeName: String
Returns a DOMString
containing the name of the Node
. The structure of the name will differ with the node type. E.g. An HTMLElement
will contain the name of the corresponding tag, like 'audio'
for an HTMLAudioElement
, a Text
node will have the '#text'
string, or a Document
node will have the '#document'
string.
baseURI: String
Returns a DOMString
representing the base URL. The concept of base URL changes from one language to another; in HTML, it corresponds to the protocol, the domain name and the directory structure, that is all until the last '/'
.
isConnected: Bool
Returns a boolean indicating whether or not the Node is connected (directly or indirectly) to the context object, e.g. the Document
object in the case of the normal DOM, or the ShadowRoot
in the case of a shadow DOM.
ownerDocument: HTMLDocument
Returns the Document
that this node belongs to. If the node is itself a document, returns null
.
parentNode: Node
Returns a Node
that is the parent of this node. If there is no such node, like if this node is the top of the tree or if doesn't participate in a tree, this property returns null
.
parentElement: Element
Returns an Element
that is the parent of this node. If the node has no parent, or if that parent is not an Element
, this property returns null
.
childNodes: NodeList
Returns a live NodeList
containing all the children of this node. NodeList
being live means that if the children of the Node
change, the NodeList
object is automatically updated.
firstChild: Node
Returns a Node
representing the first direct child node of the node, or null
if the node has no child.
lastChild: Node
Returns a Node
representing the last direct child node of the node, or null
if the node has no child.
previousSibling: Node
Returns a Node
representing the previous node in the tree, or null
if there isn't such node.
nextSibling: Node
Returns a Node
representing the next node in the tree, or null
if there isn't such node.
nodeValue: String
Returns / Sets the value of the current node
textContent: String
Returns / Sets the textual content of an element and all its descendants.
getRootNode(?options: Null<GetRootNodeOptions>): Node
Returns the context object's root which optionally includes the shadow root if it is available.
Name | Type | Default |
---|---|---|
options |
Null<GetRootNodeOptions> | (optional) |
Returns |
---|
Node |
hasChildNodes(): Bool
Returns a Boolean
indicating if the element has any child nodes, or not.
Returns |
---|
Bool |
Inserts a Node
before the reference node as a child of a specified parent node.
Name | Type |
---|---|
node |
Node |
child |
Node |
Returns |
---|
Node |
Adds the specified childNode argument as the last child to the current node.
If the argument referenced an existing node on the DOM tree, the node will be detached from its current position and attached at the new position.
Name | Type |
---|---|
node |
Node |
Returns |
---|
Node |
Replaces one child Node
of the current one with the second one given in parameter.
Name | Type |
---|---|
node |
Node |
child |
Node |
Returns |
---|
Node |
Removes a child node from the current element, which must be a child of the current node.
Name | Type |
---|---|
child |
Node |
Returns |
---|
Node |
normalize(): Void
Clean up all the text nodes under this element (merge adjacent, remove empty).
Clone a Node
, and optionally, all of its contents. By default, it clones the content of the node.
Name | Type | Default |
---|---|---|
deep |
Bool | false |
Returns |
---|
Node |
Returns a Boolean
value indicating whether or not the two nodes are the same (that is, they reference the same object).
Name | Type |
---|---|
node |
Node |
Returns |
---|
Bool |
Returns a Boolean
which indicates whether or not two nodes are of the same type and all their defining data points match.
Name | Type |
---|---|
node |
Node |
Returns |
---|
Bool |
Compares the position of the current node against another node in any other document.
Name | Type |
---|---|
other |
Node |
Returns |
---|
Int |
Returns a Boolean
value indicating whether a node is a descendant of a given node or not.
Name | Type |
---|---|
other |
Node |
Returns |
---|
Bool |
Returns a DOMString
containing the prefix for a given namespace URI, if present, and null
if not. When multiple prefixes are possible, the result is implementation-dependent.
Name | Type |
---|---|
namespace |
String |
Returns |
---|
String |
Accepts a prefix and returns the namespace URI associated with it on the given node if found (and null
if not). Supplying null
for the prefix will return the default namespace.
Name | Type |
---|---|
prefix |
String |
Returns |
---|
String |
Accepts a namespace URI as an argument and returns a Boolean
with a value of true
if the namespace is the default namespace on the given node or false
if not.
Name | Type |
---|---|
namespace |
String |
Returns |
---|
Bool |