The Science of Programming/SwayPresentations/Objects/Examples6

So you really want multiple inheritance?

   function super()
       {
       var x = 3;
       var z = x * x;
       this;
       }
   function duper()
       {
       var y = 4;
       var z = y * y;
       this;
       }

   function sub()
       {
       extends(super());
       extends(duper());
       }

   inspect(sub() . x);
   inspect(sub() . y);
   inspect(sub() . z);

What would you expect the value of z to be?

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