Gets the amount of storage space, in bytes, used one or more items being stored in the storage area.
This function only exists in browser.storage.sync
It does not exist in browser.storage.local
See https://bugzilla.mozilla.org/show_bug.cgi?id=1385832
This is an asynchronous function that returns a Promise
.
var gettingSpace = browser.storage.<storageType>.getBytesInUse( keys // null, string, or array of strings )
<storageType>
can only be storage.sync
, not storage.local
because of this bug.
keys
null
or undefined
here, the function will return the space used by the entire storage area.A Promise
that will be fulfilled with an integer, bytesUsed
, representing the storage space used by the objects that were specified in keys
. If the operation failed, the promise will be rejected with an error message.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
getBytesInUse |
Yes |
14 |
78
Only supported by the
sync storage area. |
? |
33 |
14 |
? |
? |
No |
? |
? |
? |
Note: This API is based on Chromium's chrome.storage
API. This documentation is derived from storage.json
in the Chromium code.
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/getBytesInUse