Important : The synchronous version of the IndexedDB API was originally intended for use only with Web 工作者 , and was eventually removed from the spec because its need was questionable. It may however be reintroduced in the future if there is enough demand from web developers.
interface of the
provide a synchronous means of accessing the capabilities of indexed databases.
Opens and returns a connection to a database . Blocks the calling thread until the connection object is ready to return. If there is already a database with the specified name, it uses that one; otherwise, it creates the database using the specified name and description.
IDBDatabaseSync open ( in DOMString name, in DOMString description ) raises (IDBDatabaseException);
This method can raise an IDBDatabaseException with the following codes:
nameparameter is not valid. A valid name is any string including the empty string.