Angular 将值指定到导入的数据模型中

我创建了这样一个模型：

export class User {
  firstName: string;
  lastName: string;
  email: string;
  faculty: string;
  academicYear: number;
  participatingEvents: Array<string>;
  myClubs: Array<{id: string, isPresident: boolean, isEventPlanner: boolean}>;
}

但我的控制台显示它不起作用

---

user1

即使设置了类型，也需要初始化

user1:User={}作为用户；

您会遇到此错误，因为在您尝试设置值之前，

user1

未定义。在尝试访问对象之前初始化该对象

user1: User;

ngOnInit() {
   this.user1 = new User();
   // ... rest of the code
}

此外，您应该创建一个构造函数，以便在创建异议期间初始化所有这些属性。这样，代码会变得更短，并避免在开发过程中出现印刷错误

通过这些更改，您的代码将如下所示：

export class User {
  constructor(
    public firstName: string,
    public lastName: string,
    public email: string,
    public faculty: string,
    public academicYear: number,
    public participatingEvents: Array<string>,
    public myClubs: Array<{
      id: string;
      isPresident: boolean;
      isEventPlanner: boolean;
    }>
  ) {}
}

---

请考虑一下有帮助的答案！

export class User {
  constructor(
    public firstName: string,
    public lastName: string,
    public email: string,
    public faculty: string,
    public academicYear: number,
    public participatingEvents: Array<string>,
    public myClubs: Array<{
      id: string;
      isPresident: boolean;
      isEventPlanner: boolean;
    }>
  ) {}
}

  ngOnInit() {
    this.user1 = new User(
      "PRIYASHAN",
      "JAYASANKHA",
      "PRIYASHANSHELL@GMAIL.COM",
      "UCSC",
      1,
      ["ABC", "DEF"],
      [
        { id: "QQQ", isEventPlanner: true, isPresident: true },
        { id: "WWW", isEventPlanner: false, isPresident: true }
      ]
    );
  }