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 ) {
...
});