Question

我想按字母顺序对学生名单进行排序，然后打印出包括名字在内的名单。

我已经尝试过使用sort（）函数使用其他方法，但是我无法使其正常工作。

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;
}

我要排序的示例

{
    "netid": "tc4015",
    "firstName": "Ryan",
    "lastName": "Howell",
    "email": "seersucker1910@outlook.com",
    "password": "R3K[Iy0+"
  },
  {
    "netid": "tb0986",
    "firstName": "Michal",
    "lastName": "Aguirre",
    "email": "agaty2027@yahoo.com",
    "password": "2Gk,Lx7M"
  },
  {
    "netid": "cw3337",
    "firstName": "Deangelo",
    "lastName": "Lane",
    "email": "harpy1986@live.com",
    "password": "lolSIU{/"
  },

我需要先按字母顺序对姓进行排序，然后按该顺序打印出姓和名的列表。例如，使用以前的名字，我想得到一个像这样的列表：

名称：

米歇尔·阿奎尔

Ryan Howell

迪安吉洛巷

Answer 1

使用sort和localeCompare进行排序，然后使用map获得名称：

const arr = [{
    "netid": "tc4015",
    "firstName": "Ryan",
    "lastName": "Howell",
    "email": "seersucker1910@outlook.com",
    "password": "R3K[Iy0+"
  },
  {
    "netid": "tb0986",
    "firstName": "Michal",
    "lastName": "Aguirre",
    "email": "agaty2027@yahoo.com",
    "password": "2Gk,Lx7M"
  },
  {
    "netid": "cw3337",
    "firstName": "Deangelo",
    "lastName": "Lane",
    "email": "harpy1986@live.com",
    "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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如何使用sort方法按字母顺序对姓氏列表进行排序

1 个答案: