text: // -- 004 - Tipagem Dinâmica -------- //
  
  let userName = "Gustavo"; 
  console.log(userName, typeof(userName), "->", userName = 5, typeof(userName));
  
  let userAge = 18;       
  console.log(userAge, typeof(userAge));
  
  let userStatus = false;     
  console.log(userStatus, typeof(userStatus));
  
  let userSurname;
  console.log(userSurname, typeof(userSurname));
  
  let userColor = null;
  console.log(userColor, typeof(userColor));
  