delete 키워드를 사용하여 객체 속성 삭제

let foods = {
  apples: 25,
  oranges: 32,
  plums: 28,
  bananas: 13,
  grapes: 35,
  strawberries: 27
};

delete foods.oranges;
delete foods.plums;
delete foods.strawberries;

console.log(foods); // console will display 
{ apples: 25, bananas: 13, grapes: 35 }