HTMLOptGroupElement
Provides special properties and methods (beyond the regular HTMLElement object interface they also have available to them by inheritance) for manipulating the layout and presentation of
Properties
node is a CDATASection node.
Returns the children.
Returns the child elements.
Allows for manipulation of element's class content attribute as a set of whitespace-separated tokens through a DOMTokenList object.
node is a Comment node.
node is a DocumentFragment node.
node is a document.
Set when other is a descendant of node.
Set when other is an ancestor of node.
Set when node and other are not in the same tree.
Set when other is following node.
Set when other is preceding node.
node is a doctype.
node is an element.
Returns the first child.
Returns the first child that is an element, and null otherwise.
Returns true if node is connected and false otherwise.
Returns the last child that is an element, and null otherwise.
Returns the namespace.
Returns the first following sibling that is an element, and null otherwise.
Returns the next sibling.
Fires when the user aborts the download.
Fires when the object loses the input focus.
Occurs when playback is possible, but would require further buffering.
Fires when the contents of the object or selection have changed.
Fires when the user clicks the left mouse button on the object
Fires when the user clicks the right mouse button in the client area, opening the context menu.
Fires when the user double-clicks the object.
Fires on the source object continuously during a drag operation.
Fires on the source object when the user releases the mouse at the close of a drag operation.
Fires on the target element when the user drags the object to a valid drop target.
Fires on the target object when the user moves the mouse out of a valid drop target during a drag operation.
Fires on the target element continuously while the user drags the object over a valid drop target.
Fires on the source object when the user starts to drag a text selection or selected object.
Occurs when the duration attribute is updated.
Occurs when the media element is reset to its initial state.
Occurs when the end of playback is reached.
Fires when the object receives focus.
Fires when the user presses a key.
Fires when the user releases a key.
Fires immediately after the browser loads the object.
Occurs when media data is loaded at the current playback position.
Occurs when the duration and dimensions of the media have been determined.
Occurs when Internet Explorer begins looking for media data.
Fires when the user clicks the object with either mouse button.
Fires when the user moves the mouse over the object.
Fires when the user moves the mouse pointer outside the boundaries of the object.
Fires when the user moves the mouse pointer into the object.
Fires when the user releases a mouse button while the mouse is over the object.
Occurs when playback is paused.
Occurs when the play method is requested.
Occurs when the audio or video has started playing.
Occurs to indicate progress while downloading media data.
Occurs when the playback rate is increased or decreased.
Fires when the user resets a form.
Fires when the user repositions the scroll box in the scroll bar on the object.
Occurs when the seek operation ends.
Occurs when the current playback position is moved.
Fires when the current selection changes.
Occurs when the download has stopped.
Occurs if the load operation has been intentionally halted.
Occurs to indicate the current playback position.
Occurs when the volume is changed, or playback is muted or unmuted.
Occurs when playback stops because the next frame of a video resource is not available.
Returns the node document. Returns null for documents.
Returns the parent element.
Returns the parent.
Returns the first preceding sibling that is an element, and null otherwise.
Returns the previous sibling.
node is a ProcessingInstruction node.
Returns element's shadow root, if any, and if shadow root's mode is "open", and null otherwise.
Functions
Creates a shadow root for element and returns it.
Returns the first (starting at element) inclusive ancestor that matches selectors, and null otherwise.
Returns a bitmask indicating the position of other relative to node.
Returns element's first attribute whose qualified name is qualifiedName, and null if there is no such attribute otherwise.
Returns the qualified names of all element's attributes. Can contain duplicates.
Returns element's attribute whose namespace is namespace and local name is localName, and null if there is no such attribute otherwise.
Returns a HTMLCollection of the elements in the object on which the method was invoked (a document or an element) that have all the classes given by classNames. The classNames argument is interpreted as a space-separated list of classes.
Returns node's root.
Returns true if element has an attribute whose qualified name is qualifiedName, and false otherwise.
Returns true if element has an attribute whose namespace is namespace and local name is localName.
Returns true if element has attributes, and false otherwise.
Returns whether node has children.
Returns whether node and otherNode have the same properties.
Returns the first element that is a descendant of node that matches selectors.
Returns all element descendants of node that match selectors.
Removes element's first attribute whose qualified name is qualifiedName.
Removes element's attribute whose namespace is namespace and local name is localName.
Replace all children of node with nodes, while replacing strings in nodes with equivalent Text nodes.
Replaces node with nodes, while replacing strings in nodes with equivalent Text nodes.
Displays element fullscreen and resolves promise when done.
Sets the value of element's first attribute whose qualified name is qualifiedName to value.
Sets the value of element's attribute whose namespace is namespace and local name is localName to value.
If force is not given, "toggles" qualifiedName, removing it if it is present and adding it if it is not present. If force is true, adds qualifiedName. If force is false, removes qualifiedName.