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operator   key of data-attributes    
  Related Syntax    

Summary   String

The name of the attribute.

 

Syntax

  key of specified? data-attributes
   (of ( attribute-reference))? @ numeric-expression


Purpose

An operation that returns the "true" name of the attribute. This is most useful when retrieving the real name of an attribute that is being referenced through an alias. The name is uppercased when namecase general yes applies to the SGML document.

When key of is applied to data-attributes, the "@" (item) indexer is required.

Because attributes are always considered part of a shelf of attributes, it always makes sense to ask for the "key" of an attribute, even if the data-attribute form is used rather than data-attributes.

    Related Syntax
   data-attribute
   data-attributes
   namecase general
 
 
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