The value
read-only property of the IDBCursorWithValue
interface returns the value of the current cursor, whatever that is.
var value = myIDBCursorWithValue.value;
The value of the current cursor.
In this example we create a transaction, retrieve an object store, then use a cursor to iterate through all the records in the object store. Within each iteration we log the value of the cursor with cursor.value
.
The cursor does not require us to select the data based on a key; we can just grab all of it. Also note that in each iteration of the loop, you can grab data from the current record under the cursor object using cursor.value.foo
. For a complete working example, see our IDBCursor example (view example live.)
function displayData() { var transaction = db.transaction(['rushAlbumList'], "readonly"); var objectStore = transaction.objectStore('rushAlbumList'); objectStore.openCursor().onsuccess = function(event) { var cursor = event.target.result; if(cursor) { var listItem = document.createElement('li'); listItem.innerHTML = cursor.value.albumTitle + ', ' + cursor.value.year; list.appendChild(listItem); console.log(cursor.value); cursor.continue(); } else { console.log('Entries all displayed.'); } }; };
Specification | Status | Comment |
---|---|---|
Indexed Database API The definition of 'source' in that specification. | Recommendation | |
Indexed Database API 2.0 The definition of 'IDBDatabase' in that specification. | Recommendation |
Desktop | ||||||
---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
Basic support | 24
|
12 | 16
|
10
|
15 | 7 |
Mobile | |||||||
---|---|---|---|---|---|---|---|
Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
Basic support | Yes | Yes | Yes | 22 | 22 | 8 | Yes |
IDBDatabase
IDBTransaction
IDBKeyRange
IDBObjectStore
IDBCursor
© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/IDBCursorWithValue/value