JavaScript オブジェクト配列をsqlのgroup byのように集計する

var arr = [
  {
    name: 'バナナ',
    category: 'フルーツ',
    price: 100
  },
  {
    name: 'りんご',
    category: 'フルーツ',
    price: 120
  },
  {
    name: 'みかん',
    category: 'フルーツ',
    price: 30
  },
  {
    name: 'トマト',
    category: '野菜',
    price: 200
  },
  {
    name: 'キャベツ',
    category: '野菜',
    price: 150
  }
];

// 集計後
// カテゴリーごとの個数（要素数）と金額を集計
[
  {
    category: 'フルーツ',
    count: 3,
    price: 150
  },
  {
    category: '野菜',
    count: 2,
    price: 350
  },
];

var group = arr.reduce(function (result, current) {
  var element = result.find(function (p) {
    return p.category === current.category
  });
  if (element) {
    element.count ++; // count
    element.price += current.price; // sum
  } else {
    result.push({
      category: current.category,
      count: 1,
      price: current.price
    });
  }
  return result;
}, []);

console.log(group);
/* 出力結果
[
  {
    category: 'フルーツ',
    count: 3,
    total: 150
  },
  {
    category: '野菜',
    count: 2,
    price: 350
  },
]
*/

const group = arr.reduce((result, current) => {
  const element = result.find((p) => p.category === current.category);
  if (element) {
    element.count ++; // count
    element.price += current.price; // sum
  } else {
    result.push({
      category: current.category,
      count: 1,
      price: current.price
    });
  }
  return result;
}, []);