kotlin-browser/web.dom.observers/MutationRecord

MutationRecord

sealed external class MutationRecord(source)

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

MDN Reference

Properties

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val addedNodes: NodeList<*>

Return the nodes added and removed respectively.

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val attributeName: String?

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

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val attributeNamespace: String?

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

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val nextSibling: Node?

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

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val oldValue: String?

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.

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val previousSibling: Node?

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

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val removedNodes: NodeList<*>

Return the nodes added and removed respectively.

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val 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.

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val type: MutationRecordType

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.