close()
方法在
IDBDatabase
interface returns immediately and closes the connection in a separate thread.
The connection is not actually closed until all transactions created using this connection are complete. No new transactions can be created for this connection once this method is called. Methods that create transactions throw an exception if a closing operation is pending.
注意: 此特征可用于 Web 工作者 .IDBDatabase.close();
// Let us open our database
var DBOpenRequest = window.indexedDB.open("toDoList", 4); // opening a database.
// Create event handlers for both success and failure of
DBOpenRequest.onerror = function(event) {
note.innerHTML += "<li>Error loading database.</li>";
};
DBOpenRequest.onsuccess = function(event) {
note.innerHTML += "<li>Database initialised.</li>";
// store the result of opening the database in the db variable.
db = DBOpenRequest.result;
// now let"s close the database again!
db.close();
};
| 规范 | 状态 | 注释 |
|---|---|---|
|
索引数据库 API 2.0
The definition of 'close()' in that specification. |
推荐 | |
|
索引数据库 API 草案
The definition of 'close()' in that specification. |
推荐 |
| 桌面 | 移动 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
close
|
Chrome
24
|
Edge 12 |
Firefox
16
|
IE 部分支持 10 | Opera 15 | Safari 7 | WebView Android Yes | Chrome Android 25 | Firefox Android 22 | Opera Android 14 | Safari iOS 8 | Samsung Internet Android 1.5 |
完整支持
部分支持
要求使用供应商前缀或不同名称。
IDBDatabase
IDBTransaction
IDBKeyRange
IDBObjectStore
IDBCursor
IDBDatabase
IDBCursor
IDBCursorSync
IDBCursorWithValue
IDBDatabaseException
IDBDatabaseSync
IDBEnvironment
IDBEnvironmentSync
IDBFactory
IDBFactorySync
IDBIndex
IDBIndexSync
IDBKeyRange
IDBObjectStore
IDBObjectStoreSync
IDBOpenDBRequest
IDBRequest
IDBTransaction
IDBTransactionSync
IDBVersionChangeEvent
IDBVersionChangeRequest