including various duplicates of the identical component within the Angular application

Currently, I am diving into Angular through the fantastic "Tour of Heroes" application. As I progress through the stage involving multiple components, one interesting feature is to display hero details by simply clicking on a hero's name. I am intrigued about the design pattern or implementation needed to dynamically showcase multiple instances of the "Hero Details" component beneath each hero upon selection.

template: `
  <h1>{{title}}</h1>
  <h2>My Heroes</h2>
  <ul class="heroes">
    <li *ngFor="let hero of heroes"
      [class.selected]="hero === selectedHero"
      (click)="onSelect(hero)">
      <span class="badge">{{hero.id}}</span> {{hero.name}}
      <my-hero-detail [hero]="selectedHero"></my-hero-detail>
    </li>
  </ul>

`

The aim here is to embed the "my-hero-detail" element within each "li," ensuring that upon clicking the hero's name, the corresponding details are dynamically displayed for an enriched user experience.

Answer №1

To utilize the <my-hero-detail> component multiple times, follow this example:

<ul class="heroes">
  <li *ngFor="let hero of heroes; let i=index"
    [class.selected]="hero === selectedHero"
    (click)="selectedHeroes[i] = !selectedHeroes[i]">
    <span class="badge">{{hero.id}}</span> {{hero.name}}
    <my-hero-detail [hero]="hero" [style.display]="selectedHeroes[i] ? 'block' : 'none'"></my-hero-detail>
  </li>
</ul>

If you want to toggle the visibility of each detail section, update the selectedHeroes object with true/false values for each hero.

selectedHeroes: Object = {};

View a demo here: http://plnkr.co/edit/nG0RkwR2kmr6AXzln6mU?p=info

Please note that styling may not render correctly if using <my-hero-detail> inside a <li> element.

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