过时
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

Returned by DOMImplementationSource.getDOMImplementationList() and DOMImplementationRegistry.getDOMImplementationList() . Can be iterated with 0-based index.

特性

DOMImplementationList.length 只读

Returns an integer.

方法

DOMImplementationList.item()
返回 pos 项。

规范

规范 状态 注释
DOM (文档对象模型) 3 级核心规范
The definition of 'DOMImplementationList' in that specification.
过时 初始定义。

浏览器兼容性

The compatibility table in 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
DOMImplementationList 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
item 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
length 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

不支持

非标。预期跨浏览器支持较差。

非标。预期跨浏览器支持较差。

弃用。不要用于新网站。

弃用。不要用于新网站。

元数据

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