20 lines
433 B
TypeScript
20 lines
433 B
TypeScript
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// #docregion
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import {Injectable} from 'angular2/core';
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import {Hero} from './hero';
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import {HeroService} from './hero.service';
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// #docregion service
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@Injectable()
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export class HeroCacheService {
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hero:Hero;
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constructor(private _heroService:HeroService){}
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fetchCachedHero(id:number){
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if (!this.hero) {
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this.hero = this._heroService.getHeroById(id);
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}
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return this.hero
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}
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}
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// #enddocregion service
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