Return type: Integer
Returns:       

The number of attributes for an element.

  number of specified? attributes
   element-qualifier*

An operator that returns the number of attributes declared for an element.

For example, in the following code number of is applied to attributes to determine the number of attributes declared for an element and that element's parent element:

  ...
  output "Element %q has " ||
       number of attributes ||
       " attributes(s).%n" ||
       "Element %q's parent has " ||
       number of attributes of parent ||
       " attribute(s).%n"

Related Syntax    number of

Related Concepts    Attributes: list-valued

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