是否按JavaScript中的字符串属性值对对象数组进行分组？

const data = [
  { id: 1, name: 'Alice', group: 'A' },
  { id: 2, name: 'Bob', group: 'B' },
  { id: 3, name: 'Charlie', group: 'A' },
  { id: 4, name: 'Dave', group: 'B' }
];

const groupedData = data.reduce((result, obj) => {
  const key = obj.group;
  if (!result[key]) {
    result[key] = [];
  }
  result[key].push(obj);
  return result;
}, {});

console.log(groupedData);

{
  A: [
    { id: 1, name: 'Alice', group: 'A' },
    { id: 3, name: 'Charlie', group: 'A' }
  ],
  B: [
    { id: 2, name: 'Bob', group: 'B' },
    { id: 4, name: 'Dave', group: 'B' }
  ]
}