docs: replace class hero to interface wherever class properties not used (#34022)

Fixes #21186 PR Close #34022
2019-11-25 20:47:02 +05:30
parent 7b77ead88f
commit 8ed7b73dc1
27 changed files with 28 additions and 28 deletions
--- a/aio/content/examples/hierarchical-dependency-injection/src/app/hero.ts
+++ b/aio/content/examples/hierarchical-dependency-injection/src/app/hero.ts
@ -1,6 +1,6 @@
 // #docregion

-export class Hero {
+export interface Hero {
  id:   number;
  name: string;
  tid:  string; // tax id