text: const CustomError = require("../extensions/custom-error");
  
  module.exports = function createDreamTeam(members) {
    function s(str){
      let a=str.split("").filter(item=>item!=" ");
      return a[0];
    }
    if (Array.isArray(members))  {
    return members.filter(item=>typeof(item)=="string").map(item=>s(item).toLowerCase()).sort().join("").toUpperCase();
    }
    return false;
  };