Document class

The Document represents the entire HTML, XML or SVG document. Conceptually, it is the root of the document tree, and provides the primary access to the document’s data.

Inheritance: Document → Node → EventTarget → DOMObject

The Document type exposes the following members:

Properties

Property	Description
node_type	A code representing the type of the underlying object.
local_name	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.
namespace_uri	The namespace URI of this node, or null if it is unspecified.
prefix	The namespace prefix of this node, or null if it is unspecified. When it is defined to be null, setting it has no effect
node_name	The name of this node, depending on its type.
base_uri	The absolute base URI of this node or null if the implementation wasn’t able to obtain an absolute URI.
owner_document	Gets the owner document.
parent_node	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.
parent_element	Gets the parent `Element` of this node.
child_nodes	A NodeList that contains all children of this node. If there are no children, this is a NodeList containing no nodes..
first_child	The first child of this node. If there is no such node, this returns null.
last_child	The last child of this node. If there is no such node, this returns null.
previous_sibling	The node immediately preceding this node. If there is no such node, this returns null.
next_sibling	The node immediately following this node. If there is no such node, this returns null.
node_value	The value of this node, depending on its type.
text_content	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.
ELEMENT_NODE	An element node
ATTRIBUTE_NODE	An attribute node
TEXT_NODE	A text node
CDATA_SECTION_NODE	A cdata section node
ENTITY_REFERENCE_NODE	An entity reference node
ENTITY_NODE	An entity node
PROCESSING_INSTRUCTION_NODE	A processing instruction node
COMMENT_NODE	A comment node
DOCUMENT_NODE	A document node
DOCUMENT_TYPE_NODE	A document type node
DOCUMENT_FRAGMENT_NODE	A document fragment node
NOTATION_NODE	A notation node
context	Gets the current browsing context.
implementation	The DOMImplementation object that handles this document.
location	The location of the document.
document_uri	The location of the document or null if undefined or if the Document was created using DOMImplementation.createDocument.
origin	Gets the document origin.
character_set	Gets the document’s encoding.
charset	Gets the document’s encoding.
input_encoding	Gets the document’s encoding.
content_type	Gets the document content type.
ready_state	Returns the document readiness. The “loading” while the Document is loading, “interactive” once it is finished parsing but still loading sub-resources, and “complete” once it has loaded.
doctype	The Document Type Declaration associated with this document.
document_element	This is a convenience attribute that allows direct access to the child node that is the document element of the document.
first_element_child	Returns the first child element node of this element. null if this element has no child elements.
last_element_child	Returns the last child element node of this element. null if this element has no child elements.
previous_element_sibling	Returns the previous sibling element node of this element. null if this element has no element sibling nodes that come before this one in the document tree.
next_element_sibling	Returns the next sibling element node of this element. null if this element has no element sibling nodes that come after this one in the document tree.
child_element_count	Returns the current number of element nodes that are children of this element. 0 if this element has no child nodes that are of nodeType 1.
children	Returns the child elements.
xml_standalone	An attribute specifying, as part of the XML declaration, whether this document is standalone. This is false when unspecified.
xml_version	An attribute specifying, as part of the XML declaration, the version number of this document. If there is no declaration and if this document supports the “XML” feature, the value is “1.0”. If this document does not support the “XML” feature, the value is always null.
strict_error_checking	An attribute specifying whether error checking is enforced or not. When set to false, the implementation is free to not test every possible error case normally defined on DOM operations, and not raise any DOMException on DOM operations or report errors while using Document.normalizeDocument(). In case of error, the behavior is undefined. This attribute is true by default.
default_view	The defaultView IDL attribute of the Document interface, on getting, must return this Document’s browsing context’s WindowProxy object, if this Document has an associated browsing context, or null otherwise.
style_sheets	A list containing all the style sheets explicitly linked into or embedded in a document. For HTML documents, this includes external style sheets, included via the HTML LINK element, and inline STYLE elements.

Methods

Method	Description
add_event_listener	This method allows the registration of event listeners on the event target.
add_event_listener	This method allows the registration of event listeners on the event target.
remove_event_listener	This method allows the removal of event listeners from the event target. If an `IEventListener` is removed from an `EventTarget` while it is processing an event, it will not be triggered by the current actions. Event Listeners can never be invoked after being removed.
remove_event_listener	This method allows the removal of event listeners from the event target. If an `IEventListener` is removed from an `EventTarget` while it is processing an event, it will not be triggered by the current actions. Event Listeners can never be invoked after being removed.
clone_node	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.
clone_node	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.
navigate	Loads the document at the specified Uniform Resource Locator (URL) into the current instance, replacing the previous content.
navigate	Loads the document at the specified Uniform Resource Locator (URL) into the current instance, replacing the previous content.
navigate	Loads the document from specified content and using baseUri to resolve relative resources, replacing the previous content.
navigate	Loads the document from specified content and using baseUri to resolve relative resources, replacing the previous content.
navigate	Loads the document from specified content and using baseUri to resolve relative resources, replacing the previous content. Document loading starts from the current position in the stream.
navigate	Loads the document from specified content and using baseUri to resolve relative resources, replacing the previous content. Document loading starts from the current position in the stream.
navigate	Loads the document based on specified request object, replacing the previous content.
create_node_iterator	Create a new NodeIterator over the subtree rooted at the specified node.
create_node_iterator	Create a new NodeIterator over the subtree rooted at the specified node.
create_node_iterator	Create a new NodeIterator over the subtree rooted at the specified node.
create_tree_walker	Create a new TreeWalker over the subtree rooted at the specified node.
create_tree_walker	Create a new TreeWalker over the subtree rooted at the specified node.
create_tree_walker	Create a new TreeWalker over the subtree rooted at the specified node.
get_platform_type	This method is used to retrieve ECMAScript object Type.
dispatch_event	This method allows the dispatch of events into the implementations event model.
has_child_nodes	Returns whether this node has any children.
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.
is_equal_node	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.
is_same_node	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.
lookup_prefix	Look up the prefix associated to the given namespace URI, starting from this node. The default namespace declarations are ignored by this method. See Namespace Prefix Lookup for details on the algorithm used by this method.
lookup_namespace_uri	Look up the namespace URI associated to the given prefix, starting from this node.
is_default_namespace	This method checks if the specified namespaceURI is the default namespace or not.
insert_before	Inserts the node before the existing child node child. If child is null, insert node at the end of the list of children. If child is a DocumentFragment object, all of its children are inserted, in the same order, before child. If the child is already in the tree, it is first removed.
replace_child	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.
remove_child	Removes the child node indicated by oldChild from the list of children, and returns it.
append_child	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.
create_element	Creates an element of the type specified. Note that the instance returned implements the Element interface, so attributes can be specified directly on the returned object.
create_element_ns	Creates an element of the given qualified name and namespace URI.
create_document_fragment	Creates an empty DocumentFragment object.
create_text_node	Creates a Text node given the specified string.
create_comment	Creates a Comment node given the specified string.
create_cdata_section	Creates a CDATASection node whose value is the specified string.
create_processing_instruction	Creates a ProcessingInstruction node given the specified name and data strings.
create_attribute	Creates an Attr of the given name.
create_attribute_ns	Creates an attribute of the given qualified name and namespace URI.
create_entity_reference	Creates an EntityReference object. In addition, if the referenced entity is known, the child list of the EntityReference node is made the same as that of the corresponding Entity node.
create_document_type	Creates a DocumentType node.
get_elements_by_tag_name	Returns a NodeList of all the Elements in document order with a given tag name and are contained in the document.
get_elements_by_tag_name_ns	Returns a NodeList of all the Elements with a given local name and namespace URI in document order.
get_element_by_id	Returns the Element that has an ID attribute with the given value. If no such element exists, this returns null. If more than one element has an ID attribute with that value, what is returned is undefined.
get_elements_by_class_name	Returns a live NodeList object containing all the elements in the document that have all the classes specified in argument. http://www.w3.org/TR/dom/
query_selector_all	Returns a NodeList of all the Elements in document, which match selector
query_selector	Returns the first Element in document, which match selector
import_node	Imports a node from another document to this document, without altering or removing the source node from the original document; this method creates a new copy of the source node.
create_event	Creates an `Event` of a type supported by the implementation.
write	Write a string of text to a document stream opened by open(). Note that the function will produce a document which is not necessarily driven by a DTD and therefore might be produce an invalid result in the context of the document.
write_ln	Write a string of text followed by a newline character to a document stream opened by open(). Note that the function will produce a document which is not necessarily driven by a DTD and therefore might be produce an invalid result in the context of the document
create_expression	Creates a parsed XPath expression with resolved namespaces. This is useful when an expression will be reused in an application since it makes it possible to compile the expression string into a more efficient internal form and preresolve all namespace prefixes which occur within the expression.
create_ns_resolver	Adapts any DOM node to resolve namespaces so that an XPath expression can be easily evaluated relative to the context of the node where it appeared within the document. This adapter works like the DOM Level 3 method `lookupNamespaceURI` on nodes in resolving the namespaceURI from a given prefix using the current information available in the node’s hierarchy at the time lookupNamespaceURI is called, also correctly resolving the implicit xml prefix.
evaluate	Evaluates an XPath expression string and returns a result of the specified type if possible.
render_to	This method is used to render the contents of the current document to a specified graphical device.

Document class

Document class

Properties

Methods

See Also