web api instance property
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.
<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
SpecificationsStandards references are available on the canonical MDN page.
Browser compatibility
Browser compatibilityCompatibility data is available on the canonical MDN page.