In the following code snippet, we make a request to open a database, and include handlers for the success and error cases. For a full working example, see our To-do Notifications app (view example live.)
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# cmp
Compares two values as keys. Returns -1 if key1 precedes key2, 1 if key2 precedes key1, and 0 if the keys are equal.
Throws a "DataError" DOMException if either input is not a valid key.
# deleteDatabase
Attempts to delete the named database. If the database already exists and there are open connections that don't close in response to a versionchange event, the request will be blocked until all they close. If the request is successful request's result will be null.
# open
Attempts to open a connection to the named database with the current version, or 1 if it does not already exist. If the request is successful request's result will be the connection.