IDBDatabase: close() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

Note: This feature is available in Web Workers.

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.

Syntax

js
close()

Parameters

None.

Return value

None (undefined).

Examples

js
// 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.appendChild(document.createElement("li")).textContent =
    "Error loading database.";
};

DBOpenRequest.onsuccess = (event) => {
  note.appendChild(document.createElement("li")).textContent =
    "Database initialized.";

  // 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

desktop mobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
close
Chrome – Full support
Chrome 23 (Release date: 2012-11-06)
footnote Full support
Edge – Full support
Edge 12 (Release date: 2015-07-29)
footnote Full support
Firefox – Full support
Firefox 10 (Release date: 2012-01-31)
footnote Full support
Opera – Full support
Opera 15 (Release date: 2013-07-02)
footnote Full support
Safari – Full support
Safari 8 (Release date: 2014-10-16)
footnote Full support
Chrome Android – Full support
Chrome Android 25 (Release date: 2013-02-27)
footnote Full support
Firefox for Android – Full support
Firefox for Android 22 (Release date: 2013-06-25)
footnote Full support
Opera Android – Full support
Opera Android 14 (Release date: 2013-05-21)
footnote Full support
Safari on iOS – Full support
Safari on iOS 8 (Release date: 2014-09-17)
footnote Full support
Samsung Internet – Full support
Samsung Internet 1.5 (Release date: 2013-09-25)
footnote Full support
WebView Android – Full support
WebView Android 4.4 (Release date: 2013-12-09)
footnote Full support
WebView on iOS – Full support
WebView on iOS 8 (Release date: 2014-09-17)
footnote Full support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support

See also