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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

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 4.4 18 4 ≤12.1 1 1.0

See also

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https://developer.mozilla.org/en-US/docs/Web/API/Element/prefix