The Element.prefix read-only property returns the
namespace prefix of the specified element, or null if no prefix is
specified.
Before DOM4 this API was defined within the Node interface.
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 | Status | Comment |
|---|---|---|
| DOM The definition of 'Element: prefix' in that specification. |
Living Standard |
Browser compatibility
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