Создать массив на основе вложенного массива

const arr = [
  { date: '2024/02/05', price: '1400' },
  { date: '2024/02/06', price: '1400' },
  { date: '2024/02/07', price: '2000' },
  { date: '2024/02/08', price: '2000' },
  { date: '2024/02/09', price: '2000' },
  { date: '2024/02/10', price: '2500' },
  { date: '2024/02/11', price: '2500' }
];

const groupedArr = arr.reduce((acc, obj) => {
  const existingItem = acc.find(item => item.price === obj.price);
  if (existingItem) {
    existingItem.date.push(obj.date);
  } else {
    acc.push({ price: obj.price, date: [obj.date] });
  }
  return acc;
}, []);

console.info(groupedArr);