A MutationRecord represents an individual DOM mutation. It is the object that is passed to MutationObserver's callback.
Members
# attributeNamespace
Returns the namespace of the changed attribute, and null otherwise.
# nextSibling
Return the previous and next sibling respectively of the added or removed nodes, and null otherwise.
# oldValue
The return value depends on type. For "attributes", it is the value of the changed attribute before the change. For "characterData", it is the data of the changed node before the change. For "childList", it is null.
# previousSibling
Return the previous and next sibling respectively of the added or removed nodes, and null otherwise.
# target
Returns the node the mutation affected, depending on the type. For "attributes", it is the element whose attribute changed. For "characterData", it is the CharacterData node. For "childList", it is the node whose children changed.
# type
Returns "attributes" if it was an attribute mutation. "characterData" if it was a mutation to a CharacterData node. And "childList" if it was a mutation to the tree of nodes.