处的代码已断开。推入JS。

我似乎找不到为什么我不能用addDishToCourse方法将我的菜推到[课程名称]中。。courseName是一个数组,因此不应该有任何问题(尽管事实上并非如此>)。求你了,救命啊?

const menu = {
    _courses : {
      _appetizers : [],
      _mains : [],
      _desserts : []
    },

>>    set appetizers(appetizerIn) {

    },
    get appetizers() {

    },
    set mains(mainIn) {

    },
    get mains() {

    },
    set desserts(dessertIn) {

    },
    get desserts() {

    },
    get courses() {
      return {
        appetizers : this._courses.appetizers,
        mains : this._courses.mains,
        desserts : this._courses.desserts
      }

    },
        //Below is where my code breaks with the .push 

    addDishToCourse(courseName, dishName, dishPrice) {
        let dish = {
        name : dishName,
        price : dishPrice  
      };
      this._courses[courseName].push(dish);

    },
    getRandomDishFromCourse(courseName) {
      const dishes = this._courses[courseName];
      const randomIndex = Math.floor(Math.random() * this.dishes.length);
      return dishes[randomIndex];
    },

    generateRandomMeal() {
      const appetizer = this.getRandomDishFromCourse('appetizers');
      const main = this.getRandomDishFromCourse('mains');
      const dessert = this.getRandomDishFromCourse('desserts');
      //const totalPrice = appetizers.price + mains.price + desserts.price;

      return `Your appetizer is ${appetizers.name} followed by the main meal, which will be ${mains.name}, and finally you will have ${desserts.name} for dessert.`;// Your bill will be of ${totalPrice}.`;
    }

  };

  menu.addDishToCourse('appetizers', 'Caesar Salad', 3.75);
  menu.addDishToCourse('appetizers', 'Srimp Cocktail', 6.50);
  menu.addDishToCourse('appetizers', 'Escargots Gratines', 4.50);
  menu.addDishToCourse('mains', '16oz Ribeye', 38);
  menu.addDishToCourse('mains', 'Smoked Salmon', 18);
  menu.addDishToCourse('mains', 'Grilled Chicken Breast', 19);
  menu.addDishToCourse('desserts', 'Chocolate Lava Cake', 3.50);
  menu.addDishToCourse('desserts', 'Tiramisu', 4);
  menu.addDishToCourse('desserts', 'Kiev Cake', 6.50);

  let meal = menu.generateRandomMeal();
  console.log(meal);

现在,我尝试使用if语句绕过。推,但这只是打破了其他地方的代码。否则,我知道我可能会使用setter方法,但我也不太确定如何处理这个问题。我会设置addDishToCourse吗?

我是一个新手(从简单的代码^ ^ ^可以看出),所以非常感谢您的帮助!