在我的 Angular 應(yīng)用程序中，我調(diào)用了一個(gè)從 iTunes api 返回結(jié)果的 rest-api。我想要做的是，能夠有一個(gè)添加按鈕，讓我可以將對(duì)象（歌曲對(duì)象）添加到數(shù)組中，以便用戶可以創(chuàng)建自己的播放列表。我如何將對(duì)象從其余 api 推送到數(shù)組中？到目前為止，我的 Component.ts 代碼是：import { Component, OnInit } from '@angular/core';import { ApiService } from '../../../services/api.service';import { FormGroup, FormControl } from '@angular/forms';import { FormBuilder } from '@angular/forms';import { faSearch } from '@fortawesome/free-solid-svg-icons';import { faRedo } from '@fortawesome/free-solid-svg-icons';import { faHeadphones} from '@fortawesome/free-solid-svg-icons';import { faExternalLinkAlt} from '@fortawesome/free-solid-svg-icons';@Component({  selector: 'app-content',  templateUrl: './content.component.html',  styleUrls: ['./content.component.scss']})export class ContentComponent {  public data = [];  public apiData: any;  public loading = false;  public noData = false;  p: number = 1;  faSearch = faSearch;  faRedo = faRedo;  faHeadphones = faHeadphones;  faExternalLinkAlt = faExternalLinkAlt;  searchQuery : string = "";  constructor(private service: ApiService) { }  getAll() {    this.service.getAll(this.searchQuery).subscribe((results) => {      this.loading = true;      console.log('Data is received - Result - ', results);      this.data = results.results;      this.loading = false;      if (this.data.length <= 0) {        this.noData = true;      } else if (this.data.length >= 1) {        this.noData = false;      } else {        this.noData = true;      }    })  }  refresh(): void {    window.location.reload();  }    Search(){   this.service.getAll(this.searchQuery).subscribe((results) => {      this.loading = true;      console.log('Data is received - Result - ', results);      this.data = results.results;      this.loading = false;    })  }  ngOnInit() {  }}