Baseline Widely available
The MutationRecord is a read-only interface that represents an individual DOM mutation observed by a MutationObserver. It is the object inside the array passed to the callback of a MutationObserver.
MutationRecord.addedNodes Read only
The nodes added by a mutation. Will be an empty NodeList if no nodes were added.
MutationRecord.attributeName Read only
The name of the changed attribute as a string, or null.
MutationRecord.attributeNamespace Read only
The namespace of the changed attribute as a string, or null.
MutationRecord.nextSibling Read only
The next sibling of the added or removed nodes, or null.
MutationRecord.oldValue Read only
The value depends on the MutationRecord.type:
attributes, it is the value of the changed attribute before the change.characterData, it is the data of the changed node before the change.childList, it is null.MutationRecord.previousSibling Read only
The previous sibling of the added or removed nodes, or null.
MutationRecord.removedNodes Read only
The nodes removed by a mutation. Will be an empty NodeList if no nodes were removed.
MutationRecord.target Read only
The node the mutation affected, depending on the MutationRecord.type.
attributes, it is the element whose attribute changed.characterData, it is the CharacterData node.childList, it is the node whose children changed.MutationRecord.type Read only
A string representing the type of mutation: attributes if the mutation 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.
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