Element: prefix property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

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
# ref-for-dom-element-prefix①

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
prefix

Legend

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Full support
Full support

See also