Hello I got always this error but I don’t know why? Thank you!
/home/ccuser/workspace/learn-javascript-objects-meal-maker/app.js:37
return this._courses[courseName].push(dish);
^
TypeError: Cannot read property 'push' of undefined
at Object.addDishToCourse (/home/ccuser/workspace/learn-javascript-objects-meal-maker/app.js:37:37)
at Object.<anonymous> (/home/ccuser/workspace/learn-javascript-objects-meal-maker/app.js:61:7)
at Module._compile (module.js:571:32)
at Object.Module._extensions..js (module.js:580:10)
at Module.load (module.js:488:32)
at tryModuleLoad (module.js:447:12)
at Function.Module._load (module.js:439:3)
at Module.runMain (module.js:605:10)
at run (bootstrap_node.js:427:7)
at startup (bootstrap_node.js:151:9)
Here is my code
const menu = {
_courses: {
appetizers: [],
mains: [],
desserts: [],
},
get appetizers() {
return this._courses.appetizers;
},
get mains(){
return this._courses.mains;
},
get desserts(){
return this._courses.desserts;
},
set appetizers(appetizers){
this._courses.appetizers = appetizers;
},
set mains(mains){
this._courses.mains= mains;
},
set desserts(desserts){
this._courses.desserts=desserts;
},
get courses() { /* only this is also ok return _courses;*/
return {
appetizers: this.appetizers,
mains: this.mains,
desserts: this.desserts,
};
},
addDishToCourse(courseName, dishName, dishPrice) {
const dish = {
name: dishName,
price: dishPrice,
};
return this._courses[courseName].push(dish);
},
getRandomDishFromCourse(courseName){
const dishes = this._courses[courseName];
const randomIndex = Math.floor(Math.random() * dishes.length);
return dishes[randomIndex];
},
generateRandomMeal(){
const appetizers= this.getRandomDishFromCourse('appetizers');
const mains = this.getRandomDishFromCourse('mains');
const desserts = this.getRandomDishFromCourse('desserts');
const totalPrice = appetizer.price + main.name + dessert.name;
return `Your meal is ${appetizer.name}, ${main.name }, and ${dessert.name}, and the total price is ${totalPrice}`;
}
};
menu.addDishToCourse('appetizers','salad', 4.00);
menu.addDishToCourse('appetizers','wings', 4.50);
menu.addDishToCourse('appetizers','fries', 5.00);
menu.addDishToCourse('mains','steak', 10.25);
menu.addDishToCourse('mains','salmon', 7.75);
menu.addDishToCourse('mains','tofu', 1.20);
menu.addDishToCourse('dessert','ice-cream', 3.00);
menu.addDishToCourse('dessert','cofee', 3.00);
menu.addDishToCourse('dessert','cake', 3.25);
const meal = menu.generateRandomMeal();
console.log(meal);