JS newbie – Setters

menu = {
  _meal: '',
  _price: 0,
  set meal(mealToCheck) {
    if (typeof mealToCheck === '') {
      return this._meal = mealToCheck;
    }
  },
  set price(priceToCheck) {
    if (typeof priceToCheck === 'number') {
      return this._price = priceToCheck;
    }
  },
  get todaysSpecial() {
    if (this._meal && this._price) {
      return "Today's Special is ${this._meal} for ${this._price}$."
    } else {
      return 'Meal or price was not set correctly!'
    }
  }
}

menu._meal = 'Burger';
menu._price = 40;

console.log(menu);
console.log(menu.todaysSpecial);