ProcessingInstruction extension type
The ProcessingInstruction
interface represents a
processing instruction; that is, a
Node which embeds an instruction targeting a specific application but that
can be ignored by any other applications which don't recognize the
instruction.
Warning:
ProcessingInstruction
nodes are only supported in XML documents, not in HTML documents. In these, a process instruction will be considered as a comment and be represented as a Comment object in the tree.
A processing instruction may be different than the XML declaration.
Note: User-defined processing instructions cannot begin with "
xml
", asxml
-prefixed processing-instruction target names are reserved by the XML specification for particular, standard uses (see, for example,<?xml-stylesheet ?>
.
For example:
<?xml version="1.0"?>
is a processing instruction whose target
is xml
.
- on
- Implemented types
Properties
- baseURI → String
-
no setterinherited
- childNodes → NodeList
-
no setterinherited
- data ↔ String
-
getter/setter pairinherited
- firstChild → Node?
-
no setterinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- isConnected → bool
-
no setterinherited
- lastChild → Node?
-
no setterinherited
- length → int
-
no setterinherited
- nextElementSibling → Element?
-
no setterinherited
- nextSibling → Node?
-
no setterinherited
- nodeName → String
-
no setterinherited
- nodeType → int
-
no setterinherited
- nodeValue ↔ String?
-
getter/setter pairinherited
- ownerDocument → Document?
-
no setterinherited
- parentElement → Element?
-
no setterinherited
- parentNode → Node?
-
no setterinherited
- previousElementSibling → Element?
-
no setterinherited
- previousSibling → Node?
-
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- sheet → CSSStyleSheet?
-
no setter
- target → String
-
no setter
- textContent ↔ String?
-
getter/setter pairinherited
Methods
-
addEventListener(
String type, EventListener? callback, [JSAny options]) → void -
The
addEventListener()
method of the EventTarget interface sets up a function that will be called whenever the specified event is delivered to the target.inherited -
after(
JSAny nodes) → void -
The
after()
method of the CharacterData interface inserts a set of Node objects or strings in the children list of the object's parent, just after the object itself.inherited -
appendChild(
Node node) → Node -
The
appendChild()
method of the Node interface adds a node to the end of the list of children of a specified parent node.inherited -
appendData(
String data) → void -
The
appendData()
method of the CharacterData interface adds the provided data to the end of the node's current data.inherited -
before(
JSAny nodes) → void -
The
before()
method of the CharacterData interface inserts a set of Node objects and strings in the children list of theCharacterData
's parent, just before theCharacterData
node.inherited -
cloneNode(
[bool deep]) → Node -
The
cloneNode()
method of the Node interface returns a duplicate of the node on which this method was called. Its parameter controls if the subtree contained in a node is also cloned or not.inherited -
compareDocumentPosition(
Node other) → int -
The
compareDocumentPosition()
method of the Node interface reports the position of its argument node relative to the node on which it is called.inherited -
contains(
Node? other) → bool -
The
contains()
method of the Node interface returns a boolean value indicating whether a node is a descendant of a given node, that is the node itself, one of its direct children (Node.childNodes), one of the children's direct children, and so on.inherited -
deleteData(
int offset, int count) → void -
The
deleteData()
method of the CharacterData interface removes all or part of the data from thisCharacterData
node.inherited -
dispatchEvent(
Event event) → bool -
The
dispatchEvent()
method of the EventTarget sends an Event to the object, (synchronously) invoking the affected event listeners in the appropriate order. The normal event processing rules (including the capturing and optional bubbling phase) also apply to events dispatched manually withdispatchEvent()
.inherited -
getRootNode(
[GetRootNodeOptions options]) → Node -
The
getRootNode()
method of the Node interface returns the context object's root, which optionally includes the shadow root if it is available.inherited -
hasChildNodes(
) → bool -
The
hasChildNodes()
method of the Node interface returns a boolean value indicating whether the given Node has child nodes or not.inherited -
insertBefore(
Node node, Node? child) → Node -
The
insertBefore()
method of the Node interface inserts a node before a reference node as a child of a specified parent node.inherited -
insertData(
int offset, String data) → void -
The
insertData()
method of the CharacterData interface inserts the provided data into thisCharacterData
node's current data, at the provided offset from the start of the existing data. The provided data is spliced into the existing data.inherited -
isDefaultNamespace(
String? namespace) → bool -
The
isDefaultNamespace()
method of the Node interface accepts a namespace URI as an argument. It returns a boolean value that istrue
if the namespace is the default namespace on the given node andfalse
if not.inherited -
isEqualNode(
Node? otherNode) → bool -
The
isEqualNode()
method of the Node interface tests whether two nodes are equal. Two nodes are equal when they have the same type, defining characteristics (for elements, this would be their ID, number of children, and so forth), its attributes match, and so on. The specific set of data points that must match varies depending on the types of the nodes.inherited -
isSameNode(
Node? otherNode) → bool -
The
isSameNode()
method of the Node interface is a legacy alias the for the===
strict equality operator. That is, it tests whether two nodes are the same (in other words, whether they reference the same object).inherited -
lookupNamespaceURI(
String? prefix) → String? -
The
lookupNamespaceURI()
method of the Node interface takes a prefix as parameter and returns the namespace URI associated with it on the given node if found (andnull
if not).inherited -
lookupPrefix(
String? namespace) → String? -
The
lookupPrefix()
method of the Node interface returns a string containing the prefix for a given namespace URI, if present, andnull
if not. When multiple prefixes are possible, the first prefix is returned.inherited -
normalize(
) → void -
The
normalize()
method of the Node interface puts the specified node and all of its sub-tree into a normalized form. In a normalized sub-tree, no text nodes in the sub-tree are empty and there are no adjacent text nodes.inherited -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
remove(
) → void -
The
remove()
method of the CharacterData removes the text contained in the node.inherited -
removeChild(
Node child) → Node -
The
removeChild()
method of the Node interface removes a child node from the DOM and returns the removed node.inherited -
removeEventListener(
String type, EventListener? callback, [JSAny options]) → void -
The
removeEventListener()
method of the EventTarget interface removes an event listener previously registered with EventTarget.addEventListener from the target. The event listener to be removed is identified using a combination of the event type, the event listener function itself, and various optional options that may affect the matching process; see Matching event listeners for removal.inherited -
replaceChild(
Node node, Node child) → Node -
The
replaceChild()
method of the Node interface replaces a child node within the given (parent) node.inherited -
replaceData(
int offset, int count, String data) → void -
The
replaceData()
method of the CharacterData interface removes a certain number of characters of the existing text in a givenCharacterData
node and replaces those characters with the text provided.inherited -
replaceWith(
JSAny nodes) → void -
The
replaceWith()
method of the CharacterData interface replaces this node in the children list of its parent with a set of Node objects or string.inherited -
substringData(
int offset, int count) → String -
The
substringData()
method of the CharacterData interface returns a portion of the existing data, starting at the specified index and extending for a given number of characters afterwards.inherited -
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited