text: //requires employee constructor since its an extension.
  const Employee = require('./Employee');
  
  // manager constructor extends employee constructor 
  class Manager extends Employee {
      constructor (name, id, email, officeNumber) {
          // calling employee constructor
          super (name, id, email); 
          
          this.officeNumber = officeNumber; 
      }
  
      // override employee role to manager 
      getRole () {
          return "Manager";
      }
  
      getOffice(){
          return this.officeNumber;
      }
  }
  
  // to be exported 
  module.exports = Manager; 