The versionchange handler is executed when a versionchange transaction completed.
| 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 | Whether the event normally bubbles or not. |
cancelable Read only
| Boolean | Whether the event is cancellable or not. |
newVersion Read only
| unsigned long (int) | The new version of the database. |
oldVersion Read only
| unsigned long (int) | The old version of the database. |
var transaction = db.transaction(["customers"], IDBTransaction.versionchange);
transaction.onversionchange = function( event ) {
...
}
// which is equivalent to
transaction.addEventListener("versionchange", function( event ) {
...
});
© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/Events/versionchange_indexedDB