55 lines
961 B
TypeScript
55 lines
961 B
TypeScript
import { Injectable } from '@angular/core';
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export class Hero {
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constructor(public name:string,
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public state = 'inactive') {
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}
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toggleState() {
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this.state = (this.state === 'active' ? 'inactive' : 'active');
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}
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}
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@Injectable()
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export class Heroes implements Iterable<Hero> {
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currentHeroes: Hero[] = [];
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[Symbol.iterator]() {
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return this.currentHeroes.values();
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}
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canAdd() {
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return this.currentHeroes.length < ALL_HEROES.length;
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}
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canRemove() {
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return this.currentHeroes.length > 0;
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}
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add() {
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this.currentHeroes.push(ALL_HEROES[this.currentHeroes.length]);
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}
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remove() {
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this.currentHeroes.splice(this.currentHeroes.length - 1, 1);
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}
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}
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var ALL_HEROES = [
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'Wolverine',
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'Magneto',
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'Emma Frost',
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'Thing',
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'Kitty Pryde',
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'Nightcrawler',
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'Juggernaut',
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'Beast',
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'Captain America',
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'Spider-Man',
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'Puck',
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'Alex Wilder',
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'Doctor Strange'
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].map(name => new Hero(name));
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