javascript - 根据嵌套对象值对数组进行排序

Question

我正在尝试创建一个根据嵌套对象值对数组进行排序的函数。

const customers = [
  {
    name: 'John',
    displayOrder: [{ route1: 1 }, { route2: 3 }],
  },
  {
    name: 'Julie',
    displayOrder: [{ route1: 2 }, { route2: 1 }],
  },
  {
    name: 'Betsy',
    displayOrder: [{ route1: 3 }, { route2: 2 }],
  },
];

function sortCustomers(customers, route) {
  //enter amazing code here :P
  //here is what I think could work, just don't know how to get the index number
  customers.sort((a, b) => (a.displayOrder[?].route > b.displayOrder[?].route ? 1 : -1))
}

const route = 'route2';

sortCustomers(customers, route);
//desired output: [{Julie}, {Betsy}, {John}]

我想使用 array.sort 但我不知道如何为传入的适当路由参数动态生成索引。

Answer 1

可以找到顺序，作为排序的值。

function sortCustomers(customers, route) {
    const order = ({ displayOrder }) => displayOrder.find(o => route in o)[route];
    customers.sort((a, b) => order(a) - order(b));
    return customers;
}

const customers = [{ name: 'John', displayOrder: [{ route1: 1 }, { route2: 3 }] }, { name: 'Julie', displayOrder: [{ route1: 2 }, { route2: 1 }] }, { name: 'Betsy', displayOrder: [{ route1: 3 }, { route2: 2 }] }];

console.log(sortCustomers(customers, 'route2'));

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