Some Javascript attributes

Source: Internet
Author: User
Tags processing instruction

Async attributes

The async attribute indicates whether asynchronous download is allowed.
Basic syntax boolValue = XMLDocument. async; XMLDocument. async = boolValue;
The Boolean value is writable (read/write). If asynchronous download is allowed, the value is True; otherwise, the value is False.
Example

Webjx. Com


XmlDoc. async = "false ";
Alert (xmlDoc. async); webpage tutorial Network

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Attribute webpage tutorial Network

Returns the attribute list of the current node.
Basic syntax objAttributeList = xmlNode. attributes;
Returns an object. If this node cannot contain attributes, a null value is returned.
Example

 

ObjAttList = xmlDoc.doc umentElement. attributes;
Alert (objAttList );

Webpage tutorial Network

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Webpage tutorial Network

ChildNodes attributes

A list of available sub-nodes of the node.
Basic syntax objNodeList = node. childNodes;
Returns an object. If this node does not have a subnode, null is returned.
Example

ObjNodeList = xmlDoc. childNodes;
Alert (objNodeList );

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Doctype attribute Webjx. Com

File Type node, including the DTD of the current file. This node is a general file type declaration. For example, the Node object named "EMAIL" will be returned.
Basic Syntax: objdoctypew.xmldocument.doc type;
It indicates that an object is returned. This attribute is read-only. If this file does not contain a DTD, null is returned.
Example

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ObjDocType = xmlDoc.doc type;
Alert (objDocType. nodeName );

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DocumentElement attributes

Webpage tutorial Network

As the Root node of the validation XML file.
Basic syntax objdoc1_xmldocument.doc umentElement;
It refers to an object that contains data in a single root file element. This attribute is readable/written. If the file does not contain the root node, null is returned.
Example: Webjx. Com

ObjDocRoot = xmlDoc.doc umentElement;
Alert (objDocRoot );

 

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FirstChild attributes

The first child element in the current node.
Basic syntax objFirstChild = xmlDocNode. firstChild;
This attribute is read-only and an object is returned. If the node does not contain the first child element, null is returned.
Tutorial webpage tutorial Network

ObjFirstChild = xmlDoc.doc umentElement. firstChild;
Alert (objFirstChild); Webjx. Com

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Implementation attributes

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DOM applications can use objects in other implementations. The implementation attribute confirms the DOMimplementation object of the current XML file.
Basic syntax objImplementation = xmlDocument. implementation;
This attribute is read-only and returns an object.
Example


ObjImp = xmlDoc. implementation;
Alert (objImp );

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LastChild attribute Webjx. Com

Used to confirm the final child element of the current node.
Basic syntax objLastChild = xmlDocNode. lastChild;
This attribute is read-only and returns an object. If the node does not contain the last child element, null is returned.
Example

 

ObjLastChild = xmlDoc.doc umentElement. lastChild;
Alert (objLastChild );

 

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NextSibling attributes

In the subnode list of the current file node.
Basic syntax objNextSibling = xmlDocNode. nextSibling;
This attribute is read-only and returns an object. If the node does not contain any other related node, null is returned.
Example

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ObjSibling = xmlDoc.doc umentElement. childNodes. item (1). nextSibling;
Alert (objSibling );

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NodeName attribute Webjx. Com

Returns the string representing the current node name.
Basic syntax strNodeName = xmlDocNode. nodeName;
Returns a string. This attribute is read-only and returns the element name, attribute, or object reference.
Tutorial webpage tutorial Network

StrNodeName = xmlDoc.doc umentElement. nodeName;
Alert (strNodeName );

Webpage tutorial Network


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NodeType attributes

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Identifies the DOM type of a node.
Basic syntax numNodeType = xmlDocNode. nodeType;
This attribute is read-only and returns a value.

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Valid values are of the following types:
1-ELEMENT
2-ATTRIBUTE
3-TEXT
4-CDATA
5-ENTITY REFERENCE
6-ENTITY
7-PI (processing instruction)
8-COMMENT
9-DOCUMENT
10-DOCUMENT TYPE
11-DOCUMENT FRAGMENT
12-NOTATION
 
Example: Webjx. Com

NumNodeType = xmlDoc.doc umentElement. nodeType;
Alert (numNodeType );

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NodeValue attributes

Used to return text related to a specified node. This is not a data value in an element, but a node-related and unparsed text, just like an attribute or a processing command.
Basic syntax varNodeValue = xmlDocNode. nodeValue;
The returned text represents the type value based on the node's nodeType attribute. (See the nodeType attribute in the appendix .) Because the node type may be one of several data types, the return value is also different. The node types that return null include DOCUMENT, ELEMENT, document type, document fragment, ENTITY, entity reference, and NOTATION. This attribute can be erased.
Example: Webjx. Com

VarNodeValue = xmlDoc.doc umentElement. nodeValue;
Alert (varNodeValue );

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Ondataavailable attributes

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Specifies an event to process the ondataavailable event.
Basic syntax xmlDocNode. ondataavailable = value;
This attribute is write-only. Once the data of the file author is available, the data can be used for operation as soon as possible.
Example

XmlDoc. ondataavailable = alert ("Data is now available .");


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Onreadystatechange attribute webpage

Specifies an event to process the onreadystatechange event. This event can identify changes to the readyState attribute.
Basic syntax xmlDocNode. onreadystatechange = value;
This attribute is write-only and allows the file author to specify the call event when the readyState attribute changes.
Example

 

XmlDoc. onreadystatechange = alert ("The readyState property has changed .");


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OwnerDocument attribute Webjx. Com

The root node used to return the file, including the current node.
Basic syntax objOwnerDoc = xmlDocument. ownerDocument;
This attribute is read-only and returns an object containing the root node of the file, containing a specific node.
Example: Webjx. Com

ObjOwnerDoc = xmlDoc. childNodes. item (2). ownerDocument;
Alert (objOwnerDoc); Webjx. Com

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ParentNode attributes

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Returns the parent node of the current node. It can only be applied to nodes with a parent node.
Basic Syntax: objParentNode = xmlDocumentNode. parentNode;
This attribute is read-only and returns the parent node object containing the specified node. If the node does not exist in the file tree, null is returned.
Example: Webjx. Com

ObjParentNode = xmlDoc. childNodes. item (1). parentNode;
Alert (objParentNode); Webjx. Com

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ParseError attribute webpage

Return a DOM parsing error object, which describes the final parsing error message.
Basic syntax objParseErr = xmlDocument. parseError;
This attribute is read-only. If no error occurs, 0 is returned.
Example

ObjParseErr = xmlDoc. parseError;
Alert (objParseErr );

 

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Previussibling attributes

Used to return back to the brother node before the current node.
Basic syntax objPrevSibling = xmlDocument. previussibling;
It indicates that an object is returned. This attribute is read-only. If the node does not contain the previous sibling node, null is returned.
Tutorial webpage tutorial Network

ObjPrevSibling = xmlDoc.doc umentElement. childNodes. item (3). previousSibling;
Alert (objPrevSibling); web teaching network

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Webjx. Com

ReadyState attribute Webjx. Com

The current situation of the XML file.
Basic syntax intState = xmlDocument. readyState;
This attribute is read-only and the returned value may be:
0-UNINITIALIZED: XML objects are generated, but no files are loaded.
1-LOADING: The LOADING program is in progress, but the file has not started parsing.
2-LOADED: some files have been LOADED and parsed, but the object model has not yet taken effect.
3-INTERACTIVE: only valid for some loaded files. In this case, the object model is valid but read-only.
4-COMPLETED: the file is fully loaded, indicating that the file is successfully loaded.
Example: Webjx. Com

Alert ("The readyState property is" + xmlDoc. readyState );

Webpage tutorial Network

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Url attributes

 

Returns the URL of the last XML file to be loaded.
Basic syntax strDocUrl = xmlDocument. url;
This attribute is read-only and returns the URL of the last successfully loaded file. If the file only exists in the primary storage (indicating that the file is not loaded by an external file), null is returned.
Example

Alert (xmlDoc. url); Webjx. Com

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ValidateOnParse attributes


Used to tell the parser whether the file is valid.
Basic Syntax: boolValidate = xmlDocument. validateOnParse; xmlDocument. validateOnParse = boolValidate;
This attribute can be erased. If the return value is true, the file is confirmed to be valid when it is parsed. If false is returned, the file is invalid and is considered to be a standard (well-formed) file.
Example

 

XmlDoc. validateOnParse = true;
Alert (xmlDoc. validateOnParse); webpage tutorial Network

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Xml attributes

 

Returns the XML Description of the specified node and all child nodes.
Basic syntax xmlValue = xmlDocumentNode. xml;
This attribute is read-only.
Example

Webpage tutorial Network


XmlValue = xmlDoc.doc umentElement. xml;
Alert (xmlValue );

 

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