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                // Model
class UserModel {
  constructor(name) {
    this._name = name;

  // 定義 getter 方法來取得名稱
  get name() {
    return this._name;

// View
class UserView {
   constructor(model) {
    this.model = model;
  renderName() {
    const userName =; // 透過 getter 取得名稱
    console.log(`User Name: ${userName}`);

// Controller
class UserController {
  constructor(model, view) {
    this.model = model;
    this.view = view;

  // 取得使用者名稱並渲染視圖
  displayUserInfo() {
    // const userName =; // 透過 getter 取得名稱
    // this.view.renderName(userName);

// 建立模型、視圖和控制器實例
const userModel = new UserModel('John Doe');
const userView = new UserView(userModel);
const userController = new UserController(userModel, userView);

// 控制器取得使用者資訊並通知視圖渲染