如何在lodash中对数据进行分组并使用可选属性？

const _ = require('lodash');

const data = [
  { id: 1, name: 'Alice', gender: 'female' },
  { id: 2, name: 'Bob', gender: 'male' },
  { id: 3, name: 'Charlie', gender: 'male' },
  { id: 4, name: 'Diana', gender: 'female' },
];

const groupedData = _.groupBy(data, 'gender');

console.log(groupedData);

{
  female: [
    { id: 1, name: 'Alice', gender: 'female' },
    { id: 4, name: 'Diana', gender: 'female' }
  ],
  male: [
    { id: 2, name: 'Bob', gender: 'male' },
    { id: 3, name: 'Charlie', gender: 'male' }
  ]
}

const _ = require('lodash');

const data = [
  { id: 1, name: 'Alice', age: 25 },
  { id: 2, name: 'Bob', age: 30 },
  { id: 3, name: 'Charlie', age: 25 },
  { id: 4, name: 'Diana', age: 30 },
];

const groupedData = _.groupBy(data, item => item.age > 28 ? 'above28' : 'belowOrEqual28');

console.log(groupedData);

{
  belowOrEqual28: [
    { id: 1, name: 'Alice', age: 25 },
    { id: 3, name: 'Charlie', age: 25 }
  ],
  above28: [
    { id: 2, name: 'Bob', age: 30 },
    { id: 4, name: 'Diana', age: 30 }
  ]
}