Trying to push an object into array, array is undefined

Question

Simple question, Provided that 'dish' is a standard object from the same type. Why is the push not possible??

 class DinnerModel {
  constructor() {
    this.menu = new Array();
    this.dishes = dishesConst;
    this.guests = this.setNumberOfGuests(1);
  }

  addDishToMenu(dish) {
    menu.push(dish);
  }

I get the error message:

  ReferenceError: menu is not defined
    at DinnerModel.addDishToMenu (src/model/dinnerModel.js:76:5)
    at Context.<anonymous> (src/model/dinnerModel.test.js:204:15)

menu !== this.menu

VLAZ
– VLAZ

2019-10-31 15:33:46 +00:00
Commented Oct 31, 2019 at 15:33 — VLAZ
– VLAZ, Commented Oct 31, 2019 at 15:33

Ted · Accepted Answer · 2019-10-31 15:40:20Z

7

Simple- you forgot to use this in addDishToMenu:

this would work:

addDishToMenu(dish) {
  this.menu.push(dish);
}

also, as a side note- instead of using new Array() you can just initialize it to [].

edited Oct 31, 2019 at 15:40

Ted

14.9k2 gold badges43 silver badges58 bronze badges

answered Oct 31, 2019 at 15:31

Gibor

1,7218 silver badges20 bronze badges

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