如何使用排序方法按字母顺序对姓氏列表进行排序[复制]

Question

这个问题在这里已有答案：

• Sort array of objects by string property value 41个答案

我想按字母顺序按名字对学生列表进行排序，然后打印出包含名字的列表。

我已尝试使用sort（）函数的不同方法，但我无法使其工作。

我的代码：

const students = require('./students1.json');
const fs = require('fs');

for (let student of students) {
    let NetID = student.netid;

    var lastname = student.lastName;
    lastname.sort();
    let name = student.firstName + " " + student.lastName;
}

我想要排序的一个例子

{
    "netid": "tc4015",
    "firstName": "Ryan",
    "lastName": "Howell",
    "email": "[email protected]",
    "password": "R3K[Iy0+"
  },
  {
    "netid": "tb0986",
    "firstName": "Michal",
    "lastName": "Aguirre",
    "email": "[email protected]",
    "password": "2Gk,Lx7M"
  },
  {
    "netid": "cw3337",
    "firstName": "Deangelo",
    "lastName": "Lane",
    "email": "[email protected]",
    "password": "lolSIU{/"
  },

我需要先按字母顺序对姓氏进行排序，然后按顺序打印出名字和姓氏的列表。例如，使用以前的名称，我想得到一个列表，如：

名称：

Michal Aguirre

瑞安豪威尔

迪恩杰洛巷

Answer 1

使用sort和localeCompare进行排序，然后使用map获取名称：

const arr = [{
    "netid": "tc4015",
    "firstName": "Ryan",
    "lastName": "Howell",
    "email": "[email protected]",
    "password": "R3K[Iy0+"
  },
  {
    "netid": "tb0986",
    "firstName": "Michal",
    "lastName": "Aguirre",
    "email": "[email protected]",
    "password": "2Gk,Lx7M"
  },
  {
    "netid": "cw3337",
    "firstName": "Deangelo",
    "lastName": "Lane",
    "email": "[email protected]",
    "password": "lolSIU{/"
  }
];

const names = arr.sort(({ lastName: a }, { lastName: b }) => a.localeCompare(b)).map(({ firstName, lastName }) => `${firstName} ${lastName}`);

console.log(names);

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