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StorageEvent: oldValue property - Web APIs

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1. Web
2. Web APIs
3. StorageEvent
4. oldValue

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• Value
• Specifications
• Browser compatibility
• See also

1. Web Storage API
2. StorageEvent
3. Constructor
   1. StorageEvent()
4. Instance properties
   1. key
   2. newValue
   3. oldValue
   4. storageArea
   5. url
5. Instance methods
   1. initStorageEvent() Deprecated
6. Inheritance
   1. Event
7. Related pages for Web Storage API
   1. Storage
   2. Window.localStorage
   3. Window.sessionStorage
8. Guides
   1. Using the Web Storage API

• Value
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Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

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The oldValue property of the StorageEvent interface returns the original value of the storage item whose value changed.

A string containing the original value of the storage item.

• Web Storage API

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This page was last modified on Nov 29, 2023 by MDN contributors.

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