//Design a class for employee which takes id and name in during construction of object and has a salary property
//Design a class which is manager and can have department property
var Employee = function(id,name){
  
    if(!id  || !name){
        throw new Error('Employee id and name are mandatory');
    }
    this.id = id ;
    this.name = name ;
  }
  Employee.prototype.setSalary = function(salary){
    this.salary = salary ;
  }
  Employee.prototype.getSalary = function(){
    return this.salary;
  }
  Employee.prototype.getName = function(){
    return this.name;
  }
  Employee.prototype.getId = function(){
    return this.id;
  }

var Manager= function(params){
  Employee.apply(this,arguments);
  this.iamge = params.image ;
}
Manager.prototype = Object.create(Employee.prototype);
Manager.prototype.constructor =Manager ;
Manager.prototype.setDepartment= function(name){
    this.deapartment = name ;
  }
  Manager.prototype.getDepartment= function(){
   return this.deapartment;
  }
const employee = new Employee(1,"Satya");
employee.setSalary(100);
const manager = new Manager(2,'John');
manager.setDepartment('CS');
console.log(employee.getSalary());
console.log(manager);