StorageArea.getBytesInUse()
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://bugzil.la/1385832
This is an asynchronous function that returns a Promise
.
Syntax
js
let 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.
Parameters
keys
-
A key (string) or keys (an array of strings) to identify the item(s) whose storage space you want to retrieve. If an empty array is passed in, 0 will be returned. If you pass
null
orundefined
here, the function will return the space used by the entire storage area.
Return value
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.
Browser compatibility
BCD tables only load in the browser
Note: This API is based on Chromium's chrome.storage
API. This documentation is derived from storage.json
in the Chromium code.