Эта статья нуждается в техническом обзоре. Как вы можете помочь.
Наши волонтёры ещё не перевели данную статью на Русский. Присоединяйтесь к нам и помогите закончить эту работу!
The proposed getAllKeys()
method of the IDBIndex
interface would instantly retrieve the keys of all objects inside an object store, setting them as the result
of the request object.
Note: This method is not currently included in the IndexedDB spec or available in any browsers, but is being considered for future addition.
Syntax
var myIndex = objectStore.index('index'); var getAllKeysRequest = myIndex.getAllKeys(query);
Returns
An IDBRequest
object on which subsequent events related to this operation are fired.
Parameters
- query Optional
- A key or an
IDBKeyRange
identifying the keys to retrieve. If this value is null or missing, the browser will use an unbound key range.
Exceptions
This method may raise a DOMException
of the following types:
Exception | Description |
---|---|
TransactionInactiveError | This IDBIndex 's transaction is inactive. |
InvalidStateError |
The IDBIndex has been deleted or removed. |
Example
var myIndex = objectStore.index('index'); var getAllKeyRequest = myIndex.getAllKeys(); getAllKeysRequest.onsuccess = function() { console.log(getAllKeysRequest.result); }
Specification
Specification | Status | Comment |
---|---|---|
Indexed Database API (Second Edition) The definition of 'getAll()' in that specification. |
Editor's Draft | Initial definition. |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|
Basic support | 23webkit 24 |
10 moz 16.0 (16.0) |
10, partial | 15 | 7.1 |
count() |
23 | 22.0 (22.0) | 10, partial | 15 | 7.1 |
getAll() and getAllKeys() |
48.0 | 24.0 (24.0) behind dom.indexedDB.experimental pref |
No support | No support | No support |
Feature | Android | Android Webview | Firefox Mobile (Gecko) | Firefox OS | IE Phone | Opera Mobile | Safari Mobile | Chrome for Android |
---|---|---|---|---|---|---|---|---|
Basic support | 4.4 |
(Yes) |
22.0 (22.0) | 1.0.1 | 10 | 22 | No support | (Yes) |
count() |
4.4 | ? | 22.0 (22.0) | 1.0.1 | 10 | 22 | No support | ? |
getAll() and getAllKeys() |
No support | 48.0 | 24.0 (24.0) behind dom.indexedDB.experimental pref |
1.1 behinddom.indexedDB.experimental pref |
No support | No support | No support | 48.0 |
See also
- Using IndexedDB
- Starting transactions:
IDBDatabase
- Using transactions:
IDBTransaction
- Setting a range of keys:
IDBKeyRange
- Retrieving and making changes to your data:
IDBObjectStore
- Using cursors:
IDBCursor
- Reference example: To-do Notifications (view example live.)