IDBDatabase.version

The version property of the IDBDatabase interface is a 64-bit integer that contains the version of the connected database. When a database is first created, this attribute is an empty string.

Note: This feature is available in Web Workers.

Syntax

db.version

Value

An integer containing the version of the connected database.

Example

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

// these two event handlers act on the database being opened successfully, or not
DBOpenRequest.onerror = function(event) {
  note.innerHTML += '<li>Error loading database.</li>';
};
 
DBOpenRequest.onsuccess = function(event) {
  note.innerHTML += '<li>Database initialised.</li>';
    
  // store the result of opening the database in the db variable. This is used a lot below
  db = DBOpenRequest.result;

  // This line will log the version of the connected database, which should be "4"
  console.log(db.version);
};

Specifications

Specification Status Comment
Indexed Database API
The definition of 'version' in that specification.
Recommendation  

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 23webkit
24
(Yes) 10 moz
16.0 (16.0)
10, partial 15 7.1
Available in workers (Yes) ? 37.0 (37.0) ? (Yes) ?
Feature Android Android Webview Edge Firefox Mobile (Gecko) Firefox OS IE Phone Opera Mobile Safari Mobile Chrome for Android
Basic support 4.4 (Yes) (Yes) 22.0 (22.0) 1.0.1 10 22 8 (Yes)
Available in workers (Yes) (Yes) ? 37.0 (37.0) (Yes) ? (Yes) ? (Yes)

See also

Document Tags and Contributors

 Contributors to this page: libbymc, jpmedley, chrisdavidmills, fscholz
 Last updated by: libbymc,