IDBVersionChangeRequest.setVersion()

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IDBVersionChangeRequest.setVersion method updates the version of the database, returning immediately and running a versionchange transaction on the connected database in a separate thread.

For older WebKit browsers, call this method before creating or deleting an object store.

警告： The latest draft of the specification has dropped this method. Some not up-to-date browsers still implement this method. The new way is to define the version in the IDBDatabase.open() method and create and delete object stores in the onupgradeneeded event handler associated with the returned request.

句法

IDBVersionChangeRequest setVersion ([TreatNullAs=EmptyString] in DOMString version);

范例

TBD

参数

version

IDBVersionChangeRequest

浏览器兼容性

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. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`setVersion` 弃用非标	Chrome No	Edge No	Firefox No	IE No	Opera No	Safari No	WebView Android No	Chrome Android No	Firefox Android No	Opera Android No	Safari iOS No	Samsung Internet Android No

图例

不支持
非标。预期跨浏览器支持较差。
弃用。不要用于新网站。

另请参阅

使用 IndexedDB

元数据

最后修改： 2019 年 3 月 23 日

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句法

范例

参数

返回

浏览器兼容性

图例

另请参阅

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