storage.StorageChange

StorageChange is an object representing a change to a storage area. Objects of this type are received by storage.onChanged and storage.StorageArea.onChanged event listeners.

Type

StorageChange objects contain the following properties:

oldValue Optional

The old value of the item, if there was an old value. This can be any data type.

newValue Optional

The new value of the item, if there is a new value. This can be any data type.

Browser compatibility

desktop mobile
Chrome
Edge
Firefox
Opera
Safari
Firefox for Android
Safari on iOS
StorageChange
Chrome – Full support
Chrome 19 (Release date: 2012-05-15)
footnote Full support
Edge – Full support
Edge 14 (Release date: 2016-08-02)
footnote Full support
Firefox – Full support
Firefox 45 (Release date: 2016-03-08)
footnote Full support
Opera – Full support
Opera 15 (Release date: 2013-07-02)
footnote Full support
Safari – Full support
Safari 14 (Release date: 2020-09-16)
footnote Full support
Firefox for Android – Full support
Firefox for Android 48 (Release date: 2016-08-02)
footnote Full support
Safari on iOS – Full support
Safari on iOS 15 (Release date: 2021-09-20)
footnote Full support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support

Note: This API is based on Chromium's chrome.storage API. This documentation is derived from storage.json in the Chromium code.