IDBFactory
Baseline
Widely available
*
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2015年7月.
* Some parts of this feature may have varying levels of support.
IndexedDB API 的IDBFactory 接口让程序可以异步存取 indexed databases。window.indexedDB 对象实现了这个接口。你可以通过这个对象而不是直接使用IDBFactory接口打开——创建或者连接——和删除一个数据库。
Methods
IDBFactory.open-
请求打开一个数据库的连接（connection to a database）。
IDBFactory.deleteDatabase-
请求删除数据库。
IDBFactory.cmp-
比较两个键的方法并返回一个结果，表明哪个值更大。
过时的 Methods
IDBFactory.open, the original version 已弃用-
一个被废弃的方法请求打开一个数据库的连接，仍然在一些浏览器中被实施 (connection to a database).
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 (view example live.)
Specifications
| Specification |
|---|
| Indexed Database API 3.0 # factory-interface |
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 example live.)