8d01db4638
and queryParamMap, tracing, and incidental improvements. closes #16991 and #16259 which it also fixes.
47 lines
1.2 KiB
TypeScript
47 lines
1.2 KiB
TypeScript
// #docplaster
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// #docregion , v2, rxjs-import
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import 'rxjs/add/operator/switchMap';
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// #enddocregion rxjs-import
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import { Component, OnInit } from '@angular/core';
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import { ActivatedRoute, ParamMap } from '@angular/router';
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import { Location } from '@angular/common';
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import { Hero } from './hero';
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import { HeroService } from './hero.service';
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// #docregion metadata
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@Component({
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selector: 'hero-detail',
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templateUrl: './hero-detail.component.html',
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// #enddocregion metadata, v2
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styleUrls: [ './hero-detail.component.css' ]
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// #docregion metadata, v2
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})
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// #enddocregion metadata
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// #docregion implement
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export class HeroDetailComponent implements OnInit {
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// #enddocregion implement
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hero: Hero;
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// #docregion ctor
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constructor(
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private heroService: HeroService,
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private route: ActivatedRoute,
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private location: Location
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) {}
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// #enddocregion ctor
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// #docregion ngOnInit
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ngOnInit(): void {
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this.route.paramMap
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.switchMap((params: ParamMap) => this.heroService.getHero(+params.get('id')))
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.subscribe(hero => this.hero = hero);
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}
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// #enddocregion ngOnInit
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// #docregion goBack
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goBack(): void {
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this.location.back();
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}
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// #enddocregion goBack
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}
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