The IDBFactory
interface of the IndexedDB API lets applications asynchronously access the indexed databases. The object that implements the interface is window.indexedDB
. You open — that is, create and access — and delete a database with this object, and not directly with IDBFactory
.
Note: This feature is available in Web Workers.
Methods
IDBFactory.open
- The current method to request opening a connection to a database.
IDBFactory.deleteDatabase
- A method to request the deletion of a database.
IDBFactory.cmp
- A method that compares two keys and returns a result indicating which one is greater in value.
IDBFactory.databases
- A method that returns a list of all available databases, including their names and versions.
Example
In the following code snippet, we make a request to open a database, and include handlers for the success and error cases. For a full working example, see our To-do Notifications app ([[../../../../../../mdn.github.io/to-do-notifications/index|view example live]].)
// 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 successfully, or not DBOpenRequest.onerror = function(event) { console.error("Error loading database."); }; DBOpenRequest.onsuccess = function(event) { console.info("Database initialised."); // 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; };
Specifications
Specification | Status | Comment |
Indexed Database API 2.0The definition of 'IDBFactory' in that specification. | Recommendation | |
Indexed Database API DraftThe definition of 'IDBFactory' in that specification. | Recommendation |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
IDBFactory
|
Chrome Full support 24 Full support 24 No support 23 — 57 Prefixed' Implemented with the vendor prefix: webkit |
Edge
Full support 12 |
Firefox Full support 16 Full support 16 No support 10 — 16 Prefixed' Implemented with the vendor prefix: moz |
IE
Partial support 10 |
Opera
Full support 15 |
Safari
Full support 7 |
WebView Android Full support Yes Full support Yes No support ? — 57 Prefixed' Implemented with the vendor prefix: webkit |
Chrome Android Full support 25 Full support 25 No support 25 — 57 Prefixed' Implemented with the vendor prefix: webkit |
Firefox Android
Full support 22 |
Opera Android
Full support 14 |
Safari iOS
Full support 8 |
Samsung Internet Android Full support 1.5 Full support 1.5 No support 1.5 — 7.0 Prefixed' Implemented with the vendor prefix: webkit |
cmp
|
Chrome Full support 24 Full support 24 No support 23 — 24 Prefixed' Implemented with the vendor prefix: webkit |
Edge
Full support 12 |
Firefox Full support 16 Full support 16 No support 10 — 16 Prefixed' Implemented with the vendor prefix: moz |
IE
Partial support 10 |
Opera
Full support 15 |
Safari
Full support 7 |
WebView Android Full support Yes Full support Yes No support ? — ? Prefixed' Implemented with the vendor prefix: webkit |
Chrome Android
Full support 25 |
Firefox Android
Full support 22 |
Opera Android
Full support 14 |
Safari iOS
Full support 8 |
Samsung Internet Android
Full support 1.5 |
Chrome
Full support 71 |
Edge
Full support 79 |
Firefox No support No No support No Notes' See bug 934640. |
IE
No support No |
Opera
Full support 58 |
Safari
Full support 14 |
WebView Android
Full support 71 |
Chrome Android
Full support 71 |
Firefox Android No support No No support No Notes' See bug 934640. |
Opera Android
Full support Yes |
Safari iOS
Full support 14 |
Samsung Internet Android
Full support 10.0 | |
deleteDatabase
|
Chrome Full support 24 Full support 24 No support 23 — 24 Prefixed' Implemented with the vendor prefix: webkit |
Edge
Full support 12 |
Firefox Full support 16 Full support 16 No support 10 — 16 Prefixed' Implemented with the vendor prefix: moz |
IE
Partial support 10 |
Opera
Full support 15 |
Safari
Full support 7 |
WebView Android Full support Yes Full support Yes No support ? — ? Prefixed' Implemented with the vendor prefix: webkit |
Chrome Android
Full support 25 |
Firefox Android
Full support 22 |
Opera Android
Full support 14 |
Safari iOS
Full support 8 |
Samsung Internet Android
Full support 1.5 |
open
|
Chrome Full support 24 Full support 24 No support 23 — 24 Prefixed' Implemented with the vendor prefix: webkit |
Edge
Full support 12 |
Firefox Full support 16 Full support 16 No support 10 — 16 Prefixed' Implemented with the vendor prefix: moz |
IE
Partial support 10 |
Opera
Full support 15 |
Safari
Full support 7 |
WebView Android Full support Yes Full support Yes No support ? — ? Prefixed' Implemented with the vendor prefix: webkit |
Chrome Android
Full support 25 |
Firefox Android
Full support 22 |
Opera Android
Full support 14 |
Safari iOS
Full support 8 |
Samsung Internet Android
Full support 1.5 |
Available in workers | Chrome
Full support Yes |
Edge
Full support ≤18 |
Firefox
Full support 37 |
IE
? |
Opera
Full support Yes |
Safari
? |
WebView Android
Full support Yes |
Chrome Android
Full support Yes |
Firefox Android
Full support 37 |
Opera Android
Full support Yes |
Safari iOS
? |
Samsung Internet Android
Full support Yes |
Legend
- Full support
- Full support
- Partial support
- Partial support
- No support
- No support
- Compatibility unknown
- Compatibility unknown
- Experimental. Expect behavior to change in the future.'
- Experimental. Expect behavior to change in the future.
- See implementation notes.'
- See implementation notes.
- Requires a vendor prefix or different name for use.'
- Requires a vendor prefix or different name for use.
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 ([[../../../../../../mdn.github.io/to-do-notifications/index|view example live]].)
IDBFactory by Mozilla Contributors is licensed under CC-BY-SA 2.5.