Javascript 在类中创建函数时出错

我试图创建一个类，该类将通过使用类与postgres数据库交互，但在类中创建函数时不断出错

我曾尝试将构造函数与原型一起使用，但仍然出现错误

/* eslint linebreak-style: ["error", "windows"] */
// eslint-disable-next-line no-unused-vars
const pool = require('../config/config.js');
// user constructor
class User {
  constructor(user) {
    this.username = user.username;
    this.email = user.email;
    this.password = user.password;
    this.role = user.role;
  }
  // save new user in databes
  function createUser() {

  }

  }

module.exports = User;




function createUser(params) {
           ^^^^^^^^^^

SyntaxError: Unexpected identifier
    at new Script (vm.js:80:7)
    at createScript (vm.js:274:10)
    at Object.runInThisContext (vm.js:326:10)
    at Module._compile (internal/modules/cjs/loader.js:664:28)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:712:10)
    at Module.load (internal/modules/cjs/loader.js:600:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:539:12)
    at Function.Module._load (internal/modules/cjs/loader.js:531:3)
    at Module.require (internal/modules/cjs/loader.js:637:17)
    at require (internal/modules/cjs/helpers.js:22:18)

这就是我得到的错误

const pool = require('../config/config.js');
// user constructor
class User {
  constructor(user) {
    this.username = user.username;
    this.email = user.email;
    this.password = user.password;
    this.role = user.role;
  }
  // save new user in database
  createUser() {

  }

  }

module.exports = User;

---

正如其他人提到的，这只是一个语法问题

在javascript类中，不使用关键字

函数

。只需

createUser（）{your code}

或

async createUser（）{…}

等