IDBDatabase.onclose - Web APIs 编辑

The onclose event handler of the IDBDatabase interface handles the close event, which is fired when the database is unexpectedly closed. This can happen, for example, when the application is shut down or access to the disk the database is stored on is lost while the database is open.

The close event is fired after all transactions have been aborted and the connection has been closed.

Note:

Syntax

IDBDatabase.onclose = function(event) { ... };

Value

A function which is called when the close event is fired.

Example

db.onclose = function(event) {
  myAppShowAlert('The database "' + db.name + '" has unexpectedly closed.');
};

Specifications

Browser compatibility

BCD tables only load in the browser

See also

• Using IndexedDB
• IDBDatabase
• close event