Element.prefix

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。

备注： 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.

xml

<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
DOM Standard
# ref-for-dom-element-prefix①

Browser compatibility

BCD tables only load in the browser

See also