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Element.prefix 只读属性返回指定元素的命名空间前缀,如果未指定前缀,则返回null。

在DOM4之前,该API是在 Node  interface 中定义的。

Syntax

string = element.prefix

Examples

The following logs "x" to the console.

<x:div onclick="console.log(this.prefix)"/>

Notes

This will only work when a namespace-aware parser is used, i.e. when a document is served with an XML MIME type. This will not work for HTML documents.

Specifications

Specification Status Comment
DOM4
Element.prefix
Obsolete Initial definition

Browser compatibility

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari
Basic support 46.0[1] (Yes) 48.0 (48.0)[1] ? (Yes) ?
Feature Android Edge Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? (Yes) 48.0 (48.0)[1] ? ? ?

[1] This API was previously available on the Node API.

See also

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