function Employees(nama, energi){
this.nama = nama
this.energi = energi
this.makan = function(porsi){
this.energi += porsi;
console.log(`Selamat makan ${this.nama}.`)
}
}
let frans = new Employees("Frans", 10)
let ferdinand = new Employees("Ferdinand", 5)
console.log(frans.makan(3))
console.log(frans)
console.log(ferdinand)