prevValue

Summary

Gets the previous value of the attribute or text node.

Property of dom/MutationEventdom/MutationEvent

Syntax

Note: This property is read-only.

var previousValue = event.prevValue;

Return Value

Returns an object of type StringString

The previous value of the attribute or text node.

Notes

This property indicates the previous value of an attribute node during a DOMAttrModified event, or the previous text in a character node during a DOMCharacterDataModified event.

Related specifications

DOM Level 2 Events

Recommendation

See also

Related articles

Deprecated

• -ms-radial-gradient

• -ms-repeating-linear-gradient

• -ms-repeating-radial-gradient

• MutationEvent

• attrChange

• attrName

• initMutationEvent

• newValue

• prevValue

• relatedNode

• !DOCTYPE

• !DOCTYPE

• acronym

• escape

• unescape

Attributions

• Mozilla Developer Network : [Mutation Events Article]

• Microsoft Developer Network: [Windows Internet Explorer API reference Article]