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Interface MutationRecord

A MutationRecord represents an individual DOM mutation. It is the object that is passed to MutationObserver's callback.

Hierarchy

  • MutationRecord

Index

Properties

Readonly addedNodes

addedNodes: NodeList

Return the nodes added and removed respectively.

Readonly attributeName

attributeName: string | null

Returns the local name of the changed attribute, and null otherwise.

Readonly attributeNamespace

attributeNamespace: string | null

Returns the namespace of the changed attribute, and null otherwise.

Readonly nextSibling

nextSibling: Node | null

Return the previous and next sibling respectively of the added or removed nodes, and null otherwise.

Readonly oldValue

oldValue: string | null

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.

Readonly previousSibling

previousSibling: Node | null

Return the previous and next sibling respectively of the added or removed nodes, and null otherwise.

Readonly removedNodes

removedNodes: NodeList

Return the nodes added and removed respectively.

Readonly target

target: Node

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.

Readonly 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.

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