···

       
106
       
106
       
 
       
    return acc;

     

       
107
       
107
       
 
       
  }, new Set());

     

       
108
       
108
       
 
       


     

       
109
       
109
       
-
       
  return [...set].sort();

     

       
109
       
109
       
+
       
  return [...set].sort((a, b) => {

     

       
110
       
110
       
+
       
    if (a.length === b.length) return a.localeCompare(b);

     

       
111
       
111
       
+
       
    return a.length - b.length;

     

       
112
       
112
       
+
       
  });

     

       
110
       
113
       
 
       
};

     

       
111
       
114
       
 
       


     

       
112
       
115
       
 
       
const buildRegex = groups =>  `^(${groups.join('|')})`;