Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The IDBVersionChangeEvent() constructor creates a new IDBVersionChangeEvent object, which is used to represent when a version of the database has changed, as a result of the onupgradeneeded event handler.
new IDBVersionChangeEvent();
type
A DOMString indicating the event which occurred. For IDBVersionChangeEvent this is versionchange.
eventInitDict
An optional dictionary of initial values for the event's properties. These are as follows:
oldVersion: An unsigned long representing the previous version of the database. Default is 0. newVersion: An unsigned long representing the new version of the database, or null if the database is being deleted. Default is null. For a full working example, see our To-do Notifications app (view example live.)
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IDBVersionChangeEvent |
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No
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https://developer.mozilla.org/en-US/docs/Web/API/IDBVersionChangeEvent/IDBVersionChangeEvent
| Name | Web APIs |
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| Last Updated | 2022-04-27T09:33:08Z |