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 September 2021.
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
| desktop | mobile | server | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
indexedDB | |||||||||||||
Available in workers | |||||||||||||
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).