The newVersion
read-only property of the IDBVersionChangeEvent
interface returns the new version number of the database.
Note: This feature is available in Web Workers
The newVersion
read-only property of the IDBVersionChangeEvent
interface returns the new version number of the database.
Note: This feature is available in Web Workers
A number that is a 64-bit integer or null if the database is being deleted.
In the following code snippet, we make a request to open a database, and include handlers for the success and error cases. These events are fired via the custom IDBVersionChangeEvent
interface. For a full working example, see our To-do Notifications app (view example live).
js
const note = document.querySelector("ul"); // Let us open version 4 of our database const DBOpenRequest = window.indexedDB.open("toDoList", 4); // these two event handlers act on the database being opened DBOpenRequest.onerror = (event) => { note.innerHTML += "<li>Error loading database.</li>"; }; DBOpenRequest.onsuccess = (event) => { note.innerHTML += "<li>Database initialized.</li>"; // store the result of opening the database in the db variable. // This is used a lot later on, for opening transactions and suchlike. const db = DBOpenRequest.result; };
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
newVersion |
23 | 12 | 10 | 10 | 15 | 8 | 4.4 | 25 | 22 | 14 | 8 | 1.5 |
IDBDatabase
IDBTransaction
IDBKeyRange
IDBObjectStore
IDBCursor
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https://developer.mozilla.org/en-US/docs/Web/API/IDBVersionChangeEvent/newVersion