Element.prefix

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

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
DOM Standard (DOM) # ref-for-dom-element-prefix①

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`prefix`	1	12	1	9	≤12.1	1	1	18	4	≤12.1	1	1.0