[英]How to init/set value in a superclass constructor? in Typescript
用戶
export class User {
constructor(id?: string, userName?: string, fullName?: string,
email?: string, jobTitle?: string, phoneNumber?: string, roles?: string[]) {
this.id = id;
this.userName = userName;
this.fullName = fullName;
this.email = email;
this.jobTitle = jobTitle;
this.phoneNumber = phoneNumber;
this.roles = roles;
}
}
和從User 擴展的 UserEdit
import { User } from './user.model';
export class UserEdit extends User {
constructor(currentPassword?: string, newPassword?: string, confirmPassword?: string) {
super();
this.currentPassword = currentPassword;
this.newPassword = newPassword;
this.confirmPassword = confirmPassword;
}
public currentPassword: string;
public newPassword: string;
public confirmPassword: string;
}
創建新對象后,可以從UserEdit中將email
設置為空字符串”。 例如。
let userEdit:UserEdit = new UserEdit()
您需要使用super(param1, param2, param3, ...)
在基類內部傳遞參數
在你的情況下
super(id, userName, fullName, email, jobTitle, phoneNumber, roles);
super(id, username, fullname, '', jobTitle, phoneNumber, roles);
謝謝西蒙娜雷,我也找到了另一個優雅的功能組合解決方案。
像這樣。
public user: User = new User('', '', '', '', '', '', ['']);
public userEdit: editUser = new UserEdit('', '', '');
public edit = () => { ...this.user, ...this.userEdit };
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