Element: prefix property

The Element.prefix read-only property returns the namespace prefix of the specified element, or null if no prefix is specified.

Value

A string.

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