getAllKeys() method of the
interface returns an
IDBRequest object retrieves record keys for all
objects in the object store matching the specified parameter or all objects in the
store if no parameters are given.
If a value is successfully found, then a structured clone of it is created and set as the result of the request object.
This method produces the same result for:
- a record that doesn't exist in the database
- a record that has an undefined value
To tell these situations apart, you need to call the
openCursor() method with the same key. That
method provides a cursor if the record exists, and no cursor if it does not.
getAllKeys() getAllKeys(query) getAllKeys(query, count)
IDBRequest object on which subsequent events related to this
operation are fired.
This method may raise a
DOMException of one of the following types:
|Indexed Database API 3.0 |
BCD tables only load in the browser