The databases method of the IDBFactory interface returns a list represening all the available databases, including their names and versions.
Note: This feature is available in Web Workers.
Note: This method is introduced in a draft of a specifications and browser compatibility is limited.
Syntax
const promise = indexedDB.databases()
Parameters
The method does not take in any parameters.
Return value
A promise that resolves either to an error or a list of dictionaries, each with two elements, name and version.
name
- The database name.
version
- The database version.
Exceptions
This method may raise a DOMException of the following types:
| Attribute | Description |
|---|---|
SecurityError |
The method is called from an opaque origin. |
| Other error | Specification does not describe all possible errors. |
Example
const promise = indexedDB.databases()
promise.then(databases => {
console.log(databases)
})
Specifications
| Specification | Status | Comment |
|---|---|---|
| Unknown The definition of 'databases()' in that specification. |
Unknown | Initial definition. |
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 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
databases | Chrome Full support 71 | Edge No support No | Firefox
No support
No
| IE No support No | Opera Full support 58 | Safari No support No | WebView Android Full support 71 | Chrome Android Full support 71 | Firefox Android
No support
No
| Opera Android Full support Yes | Safari iOS No support No | Samsung Internet Android No support No |
Legend
- Full support
- Full support
- No support
- No support
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.
- See implementation notes.
- See implementation notes.
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.)