angular-io-example documentation
  1. Components
  2. HeroesComponent

File

src/app/heroes/heroes.component.ts

Implements

OnInit

Metadata

selector app-heroes
styleUrls ./heroes.component.css
templateUrl ./heroes.component.html

Index

Properties
Methods

Constructor

constructor(heroService: HeroService)
Defined in src/app/heroes/heroes.component.ts:12
Parameters :
Name Type Optional
heroService HeroService No

Methods

add
add(name: string)
Defined in src/app/heroes/heroes.component.ts:25
Parameters :
Name Type Optional
name string No
Returns : void
delete
delete(hero: Hero)
Defined in src/app/heroes/heroes.component.ts:34
Parameters :
Name Type Optional
hero Hero No
Returns : void
getHeroes
getHeroes()
Defined in src/app/heroes/heroes.component.ts:20
Returns : void
ngOnInit
ngOnInit()
Defined in src/app/heroes/heroes.component.ts:16
Returns : void

Properties

heroes
heroes: Hero[]
Type : Hero[]
Defined in src/app/heroes/heroes.component.ts:12
 
import { Component, OnInit } from '@angular/core';

import { Hero } from '../hero';
import { HeroService } from '../providers/hero.service';

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

  constructor(private heroService: HeroService) { }

  ngOnInit() {
    this.getHeroes();
  }

  getHeroes(): void {
    this.heroService.getHeroes()
    .subscribe(heroes => this.heroes = heroes);
  }

  add(name: string): void {
    name = name.trim();
    if (!name) { return; }
    this.heroService.addHero({ name } as Hero)
      .subscribe(hero => {
        this.heroes.push(hero);
      });
  }

  delete(hero: Hero): void {
    this.heroes = this.heroes.filter(h => h !== hero);
    this.heroService.deleteHero(hero).subscribe();
  }

}
Copy
<h2>My Heroes</h2>

<div>
  <label>Hero name:
    <input #heroName />
  </label>
  <!-- (click) passes input value to add() and then clears the input -->
  <button (click)="add(heroName.value); heroName.value=''">
    add
  </button>
</div>

<ul class="heroes">
  <li *ngFor="let hero of heroes">
    <a routerLink="/detail/{{hero.id}}">
      <span class="badge">{{hero.id}}</span> {{hero.name}}
    </a>
    <button class="delete" title="delete hero"
      (click)="delete(hero)">x</button>
  </li>
</ul>
Copy

./heroes.component.css 

/* HeroesComponent's private CSS styles */
.heroes {
  margin: 0 0 2em 0;
  list-style-type: none;
  padding: 0;
  width: 15em;
}
.heroes li {
  position: relative;
  cursor: pointer;
  background-color: #EEE;
  margin: .5em;
  padding: .3em 0;
  height: 1.6em;
  border-radius: 4px;
}

.heroes li:hover {
  color: #607D8B;
  background-color: #DDD;
  left: .1em;
}

.heroes a {
  color: #888;
  text-decoration: none;
  position: relative;
  display: block;
  width: 250px;
}

.heroes a:hover {
  color:#607D8B;
}

.heroes .badge {
  display: inline-block;
  font-size: small;
  color: white;
  padding: 0.8em 0.7em 0 0.7em;
  background-color: #607D8B;
  line-height: 1em;
  position: relative;
  left: -1px;
  top: -4px;
  height: 1.8em;
  min-width: 16px;
  text-align: right;
  margin-right: .8em;
  border-radius: 4px 0 0 4px;
}

button {
  background-color: #eee;
  border: none;
  padding: 5px 10px;
  border-radius: 4px;
  cursor: pointer;
  cursor: hand;
  font-family: Arial;
}

button:hover {
  background-color: #cfd8dc;
}

button.delete {
  position: relative;
  left: 194px;
  top: -32px;
  background-color: gray !important;
  color: white;
}
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