JE::Undefined - JavaScript undefined value

       This class implements the JavaScript "undefined" type. There really isn't much to it.

       Undefined stringifies to 'undefined', and is false as a boolean.

       JE::Undefined - JavaScript undefined value

       JE::Types
       JE::Null
       JE

perl v5.36.0                                       2023-08-25                                 JE::Undefined(3pm)

         use JE;

         $j = new JE;

         $js_undefined = $j->undef;

         $js_undefined->value; # undef