From 531aa5f8db15dc65060e05a637b1492c8b743766 Mon Sep 17 00:00:00 2001
From: Brandon <robertsbt@gmail.com>
Date: Thu, 7 Feb 2019 17:00:55 +0000
Subject: [PATCH] docs: make method arguments optional in template syntax
 example (#28592)

PR Close #28592
---
 .../examples/template-syntax/src/app/app.component.ts     | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/aio/content/examples/template-syntax/src/app/app.component.ts b/aio/content/examples/template-syntax/src/app/app.component.ts
index b1d4e484df..0758ba6516 100644
--- a/aio/content/examples/template-syntax/src/app/app.component.ts
+++ b/aio/content/examples/template-syntax/src/app/app.component.ts
@@ -66,7 +66,7 @@ export class AppComponent implements AfterViewInit, OnInit {
 
   currentHero: Hero;
 
-  deleteHero(hero: Hero) {
+  deleteHero(hero?: Hero) {
     this.alert(`Delete ${hero ? hero.name : 'the hero'}.`);
   }
 
@@ -105,18 +105,18 @@ export class AppComponent implements AfterViewInit, OnInit {
 
   get nullHero(): Hero { return null; }
 
-  onClickMe(event: KeyboardEvent) {
+  onClickMe(event?: KeyboardEvent) {
     let evtMsg = event ? ' Event target class is ' + (<HTMLElement>event.target).className  : '';
     this.alert('Click me.' + evtMsg);
   }
 
-  onSave(event: KeyboardEvent) {
+  onSave(event?: KeyboardEvent) {
     let evtMsg = event ? ' Event target is ' + (<HTMLElement>event.target).textContent : '';
     this.alert('Saved.' + evtMsg);
     if (event) { event.stopPropagation(); }
   }
 
-  onSubmit() {/* referenced but not used */}
+  onSubmit(data: any) {/* referenced but not used */}
 
   product = {
     name: 'frimfram',