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IDBDatabase: close() method

The close() method of the IDBDatabase interface returns immediately and closes the connection in a separate thread.

The connection is not actually closed until all transactions created using this connection are complete. No new transactions can be created for this connection once this method is called. Methods that create transactions throw an exception if a closing operation is pending.

Note: This feature is available in Web Workers

Syntax

close()

Parameters

None.

Return value

None (undefined).

Examples

// Let us open our database
const DBOpenRequest = window.indexedDB.open("toDoList", 4); // opening a database.

// Create event handlers for both success and failure of
DBOpenRequest.onerror = (event) => {
  note.innerHTML += "<li>Error loading database.</li>";
};

DBOpenRequest.onsuccess = (event) => {
  note.innerHTML += "<li>Database initialized.</li>";

  // store the result of opening the database in the db variable.
  db = DBOpenRequest.result;

  // now let's close the database again!
  db.close();
};

Specifications

Specification
Indexed Database API 3.0 # ref-for-dom-idbdatabase-close②

Browser compatibility