IDBFactory.open()

Warning: This method comes from an older version of the standard, which is still implemented in some browsers. For modern browsers you should use the newer IDBFactory.open with two parameters, name and version. See the compatibility table for more information on what browsers support what method.

The original, now obsolete open() method of the IDBFactory object requests opening a connection to a database. The method returns an IDBRequest object immediately, and performs the open operation asynchronously. If the operation is successful, a success event is fired on the request object returned from this method, with its result attribute set to the new IDBDatabase object for the connection.

If an error occurs while the database connection is being opened, then an error event is fired on the request object returned from this method.

Syntax

var request = window.indexedDB.open("toDoList");

Returns

A IDBRequest object on which subsequent events related to this request are fired.

Example

var DBOpenRequest = window.indexedDB.open("toDoList");
DBOpenRequest.onerror = function(event) {
  console.log("Error loading database.");
};
 
DBOpenRequest.onsuccess = function(event) {
  console.log("Database initialised");
    
  // store the result of opening the database in the db variable. This is used a lot later on, for opening transactions and suchlike.
  db = request.result;
};

Parameters

name: The name of the database.

Specifications

This version of the open() method is from an old version of the spec. The latest version is specified at the link below:

Specification	Status	Comment
Indexed Database API The definition of 'open()' in that specification.	Editor's Draft

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari (WebKit)
Basic support	23webkit 24	10 moz 16.0 (16.0)	10, partial	15	7.1

Feature	Android	Firefox Mobile (Gecko)	Firefox OS	IE Phone	Opera Mobile	Safari Mobile
Basic support	4.4	22.0 (22.0)	1.0.1	10	22	No support