versionchange (IndexedDB)

The versionchange handler is executed when a versionchange transaction completed.

General info

Specification

IndexedDB

Interface

Event

Bubbles

No

Cancelable

No

Target

IDBTransaction

Default Action

None

Properties

Property	Type	Description
target Read only	EventTarget	The request concerned by this event
type Read only	DOMString	The type of event.
bubbles Read only	boolean	Does the event normally bubble?
cancelable Read only	boolean	Is it possible to cancel the event?
newVersion Read only	unsigned long (int)	The new version of the database.
oldVersion Read only	unsigned long (int)	The old version of the database.

Example

var transaction = db.transaction(["customers"], IDBTransaction.versionchange);

transaction.onversionchange = function( event ) {
  ...
}

// which is equivalent to
transaction.addEventListener("versionchange", function( event ) {
  ...
});

Related Events

• success
• error
• abort
• complete
• upgradeneeded
• blocked
• versionchange

See also

• Using IndexedDB