From 457e07ccb157e898ac23849886b9613b3b4d2be4 Mon Sep 17 00:00:00 2001
From: Brandon <robertsbt@gmail.com>
Date: Thu, 7 Feb 2019 16:49:17 +0000
Subject: [PATCH] docs: make toggleImage arguments optional in AngularJS quick
 reference (#28592)

PR Close #28592
---
 .../examples/ajs-quick-reference/src/app/app.component.ts       | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/aio/content/examples/ajs-quick-reference/src/app/app.component.ts b/aio/content/examples/ajs-quick-reference/src/app/app.component.ts
index 6c5de8624e..de4b412cad 100644
--- a/aio/content/examples/ajs-quick-reference/src/app/app.component.ts
+++ b/aio/content/examples/ajs-quick-reference/src/app/app.component.ts
@@ -20,7 +20,7 @@ export class AppComponent {
   movies: IMovie[] = [];
   showImage = true;
   title = 'AngularJS to Angular Quick Ref Cookbook';
-  toggleImage(event: UIEvent) {
+  toggleImage(event?: UIEvent) {
     this.showImage = !this.showImage;
     this.eventType = (event && event.type) || 'not provided';
   }