From 9f4b46796e12e806426d351899eaf01617d47d83 Mon Sep 17 00:00:00 2001
From: Tim Bowersox <11789189+t-bowersox@users.noreply.github.com>
Date: Fri, 21 Jan 2022 19:18:11 -0500
Subject: [PATCH] docs: fix UniqueAlterEgoValidatorDirective (#44764)

PR Close #44764
---
 .../form-validation/src/app/shared/alter-ego.directive.ts  | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/aio/content/examples/form-validation/src/app/shared/alter-ego.directive.ts b/aio/content/examples/form-validation/src/app/shared/alter-ego.directive.ts
index 2aeedc9ed63..6a03999dff1 100644
--- a/aio/content/examples/form-validation/src/app/shared/alter-ego.directive.ts
+++ b/aio/content/examples/form-validation/src/app/shared/alter-ego.directive.ts
@@ -37,15 +37,12 @@ export class UniqueAlterEgoValidator implements AsyncValidator {
   ]
 })
 export class UniqueAlterEgoValidatorDirective implements AsyncValidator {
-  constructor(private heroesService: HeroesService) {}
+  constructor(private validator: UniqueAlterEgoValidator) {}
 
   validate(
     control: AbstractControl
   ): Observable<ValidationErrors | null> {
-    return this.heroesService.isAlterEgoTaken(control.value).pipe(
-      map(isTaken => (isTaken ? { uniqueAlterEgo: true } : null)),
-      catchError(() => of(null))
-    );
+    this.validator.validate(control);
   }
 }
 // #enddocregion async-validator-directive