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
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.)
var note = document.querySelector("ul"); // In the following line, you should include the prefixes of // implementations you want to test. window.indexedDB = window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB; // DON'T use "var indexedDB = ..." if you're not in a function. // Moreover, you may need references to some window.IDB* objects: window.IDBTransaction = window.IDBTransaction || window.webkitIDBTransaction || window.msIDBTransaction; window.IDBKeyRange = window.IDBKeyRange || window.webkitIDBKeyRange || window.msIDBKeyRange; // (Mozilla has never prefixed these objects, // so we don't need window.mozIDB*) // Let us open version 4 of our database var DBOpenRequest = window.indexedDB.open("toDoList", 4); // these two event handlers act on the database being opened DBOpenRequest.onerror = function(event) { note.innerHTML += '<li>Error loading database.</li>'; }; DBOpenRequest.onsuccess = function(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. 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 |
7 |
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