WorkerGlobalScope: indexedDB property
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
Note: This feature is only available in Web Workers.
The indexedDB read-only property of the WorkerGlobalScope interface provides a mechanism for workers to asynchronously access the capabilities of indexed databases.
Value
An IDBFactory object.
Examples
The following code creates a request for a database to be opened asynchronously, after which the database is opened when the request's onsuccess handler is fired:
js
let db; function openDB() { const DBOpenRequest = self.indexedDB.open("toDoList"); DBOpenRequest.onsuccess = (e) => { db = DBOpenRequest.result; }; } Specifications
| Specification |
|---|
| Indexed Database API 3.0 # dom-windoworworkerglobalscope-indexeddb |
Browser compatibility
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 the example live).