This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for the proper prefixes to use in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the spec changes.
The isAutoLocale
read-only property of the IDBIndex
interface returns a Boolean
indicating whether the index had a locale
value of auto
specified upon its creation (see createIndex()
's optionalParameters.)
Syntax
var myIndex = objectStore.index('index'); console.log(myIndex.isAutoLocale);
Value
A Boolean
.
Example
In the following example we open a transaction and an object store, then get the index lName
from a simple contacts database. We then open a basic cursor on the index using IDBIndex.openCursor
— this works the same as opening a cursor directly on an ObjectStore
using IDBObjectStore.openCursor
except that the returned records are sorted based on the index, not the primary key.
The isAutoLocale
value is logged to the console.
function displayDataByIndex() { tableEntry.innerHTML = ''; var transaction = db.transaction(['contactsList'], 'readonly'); var objectStore = transaction.objectStore('contactsList'); var myIndex = objectStore.index('lName'); console.log(myIndex.isAutoLocale); myIndex.openCursor().onsuccess = function(event) { var cursor = event.target.result; if(cursor) { var tableRow = document.createElement('tr'); tableRow.innerHTML = '<td>' + cursor.value.id + '</td>' + '<td>' + cursor.value.lName + '</td>' + '<td>' + cursor.value.fName + '</td>' + '<td>' + cursor.value.jTitle + '</td>' + '<td>' + cursor.value.company + '</td>' + '<td>' + cursor.value.eMail + '</td>' + '<td>' + cursor.value.phone + '</td>' + '<td>' + cursor.value.age + '</td>'; tableEntry.appendChild(tableRow); cursor.continue(); } else { console.log('Entries all displayed.'); } }; };
Specifications
Not currently part of any specification.
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|
Basic support | Not supported | 43.0 (43.0)[1] | Not supported | Not supported | Not supported |
Feature | Android | Firefox Mobile (Gecko) | Firefox OS | IE Phone | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic support | Not supported | 43.0 (43.0)[1] | 2.5[1] | Not supported | Not supported | Not supported |
[1] This feature is currently hidden behind a flag — to enable it and experiment, go to about:config
and enable dom.indexedDB.experimental
.
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.)