The MutationEvent interface provides specific contextual
information associated with Mutation events.
An integer indicating in which way the Attr was changed.
The Attr was modified in place.
The Attr was just added.
The Attr was just removed.
relatedNode is used to identify a secondary node related to a mutation event.
For example, if a mutation event is dispatched to a node indicating that its parent
has changed, the relatedNode is the changed parent. If an event is instead
dispatched to a subtree indicating a node was changed within it, the relatedNode
is the changed node. In the case of the DOMAttrModified event it indicates the Attr
node which was modified, added, or removed.
prevValue indicates the previous value of the Attr node in
DOMAttrModified events, and of the CharacterData node in DOMCharDataModified events.
newValue indicates the new value of the Attr node in DOMAttrModified
events, and of the CharacterData node in DOMCharDataModified events.
attrName indicates the name of the changed Attr node in a
DOMAttrModified event.
attrChange indicates the type of change which triggered the DOMAttrModified event.
The values can be MODIFICATION, ADDITION, or REMOVAL.
The initMutationEvent method is used to initialize the value of a MutationEvent created through
the DocumentEvent interface. This method may only be called before the MutationEvent has
been dispatched via the dispatchEvent method, though it may be called multiple times during that
phase if necessary. If called multiple times, the final invocation takes precedence.
Specifies the event type.
Specifies whether or not the event can bubble.
Specifies whether or not the event's default action can be prevented.
Specifies the Event's related Node.
Specifies the Event's prevValue attribute. This value may be null.
Specifies the Event's newValue attribute. This value may be null.
Specifies the Event's attrName attribute. This value may be null.
Specifies the Event's attrChange attribute