class pet {
    constructor(name) {
        this.name = name;
        this.hunger = 5;
    }
    feed() {
        this.hunger = this.hunger - 1;
        console.log(this.name + ' has been fed');
    }
}

let my_pet = new pet('typy');

while (my_pet.hunger > 0) {
    console.log(my_pet.name + 's hunger is ' + my_pet.hunger);
    let choice = prompt('type feed or wait');
    if (choice == 'feed') {
        my_pet.feed();
    }
}

console.log(my_pet.name + ' is full and happy');