Access values of keys in an array of objects using TypeScript during array initialization

In my TypeScript code, I am initializing an array of objects. I need to retrieve the id parameter of a specific object that I am initializing.

vacancies: Array<Vacancy> = [{
        id: 1,
        is_fav: this.favouritesService.favourites.find(fav => fav === this.id)
    }];

The expression this.id refers to the id property of the current object being initialized, but it is giving me an error. Is there a way to access that property during initialization?

Answer №1

Let's talk about an object literal that you have:

{ 
  id: 1, 
  is_fav: this.id 
}

Now, the simple answer is NO, you cannot access your own properties of the object literal during initialization. However, you do have the ability to access those properties from methods. You could achieve this using a getter like so:

{ 
  id: 1, 
  get is_fav() { return this.id } 
}

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