我想得到这样的东西： ('ABAR-000001', 1, Barras special k pastry crips strawberry 12/1, 195.00, null, 10, Disponible, 2020-12-30, https://assets.sirena.do/product/thumbs/00/00/06/1b/4cc5a4cf847b2169c4529f84bbfa999b.jpg), ('ABAR-000001', 1, Barras de chocolate fiber o...

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我看到了这样的功能： getDish(id: number): Dish { return DISHES.filter((dish) => (dish.id === id))[0]; } But I can't understand why does it use [0] after filter function? I mean what the return value of filter looks like and why does it specifies the index 0...