【JavaScript】配列内でオブジェクトの重複があるかチェックする方法

const fruits = [
  {name: 'apple', price: 100},
  {name: 'apple', price: 100},
  {name: 'orange', price: 200},
  {name: 'grapes', price: 300}
];

const hasFruitDuplicated = () => {
  const duplicatedDeleteFruits = fruits.filter((fruit, index) =>
    fruits.findIndex(item => item.name === fruit.name && item.price === fruit.price) === index
  );
  return duplicatedDeleteFruits.length !== fruits.length;
};