Gets the amount of storage space, in bytes, used one or more items being stored in the storage area.
Syntax
chrome.storage.<storageType>.getBytesInUse(keys,callback);
<storageType
> will be one of the writable storage types — storage.sync
or storage.local
.
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 string or array is passed in, 0 will be returned. If you pass
null
here, the function will return the space used by the entire storage area. callback Optional
- A callback function that is run when the operation completes. If the operation is successful, the function is passed an integer representing the storage space used by the objects that were specified in
keys
. If the operation fails,runtime.lastError
is set.
Browser compatibility
Examples
Document Tags and Contributors
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Contributors to this page:
wbamberg,
chrisdavidmills
Last updated by:
wbamberg,