angular - 类型 'Object' 上不存在属性 'id'

我想知道你是否能帮忙。我正在学习这门课程 https://www.udemy.com/the-complete-angular-master-class/learn/lecture/7441148#questions

我有一个错误：

错误在 src/app/posts/posts.component.ts(21,11)：错误 TS2696：'Object' 类型只能分配给极少数其他类型。你是否想使用 'any' 类型代替？'Object' 类型缺少 'any[]' 类型的以下属性：length、pop、push、concat，还有其他 26 个。 src/app/posts/posts.component.ts(32,33)：错误 TS2339：属性 'id' 不存在于类型 'Object' 上。

import { BadInput } from './../common/bad-input';
import { NotFoundError } from './../common/not-found-error';
import { AppError } from './../common/app-error';
import { PostService } from './../services/post.service';
import { Component, OnInit } from '@angular/core';

@Component({
  selector: 'app-posts',
  templateUrl: './posts.component.html',
  styleUrls: ['./posts.component.css']
})
export class PostsComponent implements OnInit {
  posts: any[];

  constructor(private service: PostService) {}

  ngOnInit() {
    this.service.getPosts()
      .subscribe(
        response => {
          this.posts = response
        });
  }

  createPost(input: HTMLInputElement) {
    let post : any = { id: null, title: input.value };
    input.value = '';

    this.service.createPost(post)
      .subscribe(
        response => {
          post['id'] = response.id;
          this.posts.splice(0, 0, post);
          console.log(response);
        }, 
        (error: AppError) => {
          if (error instanceof BadInput) {
            //this.form.setErrors(error.originalError)
          } else {
            throw error;
          }
        });
  }

  updatePost(post) {
    this.service.updatePost(post)
      .subscribe(
        response => {
          console.log(response);
        });
  }

  deletePost(post) {
    this.service.deletePost(99999)
      .subscribe(
        response => {
          let index = this.posts.indexOf(post);
          this.posts.splice(index, 1);
        },
        (error: AppError) => {
          if (error instanceof NotFoundError) {
            console.log(error);
          } else {
            throw error;
          }
        });
  }
}

答案＃1

你需要将响应声明为 any 类型以消除该错误，

this.service.createPost(post)
      .subscribe(
        (response :any) => {

答案＃2

响应是一个数组，但你没有一个名为 id 的值。或者它没有达到 'id'，你可能有多个。