prevent undefined hero detail id

javiersvg · Mar 8, 2020 · 4b8e60a · 4b8e60a
1 parent 0034f70
commit 4b8e60a
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/src/app/hero/hero-detail/hero-detail.component.ts b/src/app/hero/hero-detail/hero-detail.component.ts
@@ -24,9 +24,11 @@ export class HeroDetailComponent implements OnInit {
   }
 
   getHero(): void {
-    const id = this.route.snapshot.paramMap.get('id');
-    this.heroService.get(id)
-      .subscribe(hero => this.hero = hero);
+    const id = this.route?.snapshot.paramMap.get('id');
+    if(id) {
+      this.heroService.get(id)
+        .subscribe(hero => this.hero = hero);
+    }
   }
 
   goBack(): void {