From 3104c3cafbc4b7263cd29deac82ef900db43af54 Mon Sep 17 00:00:00 2001
From: George Kalpakas <kalpakas.g@gmail.com>
Date: Fri, 25 Sep 2020 01:30:57 +0300
Subject: [PATCH] fixup! TEMP - Enable AOT always

---
 .../src/app/countdown-parent.component.ts           | 13 +++----------
 .../src/app/countdown-timer.component.ts            |  9 ++++-----
 2 files changed, 7 insertions(+), 15 deletions(-)

diff --git a/aio/content/examples/component-interaction/src/app/countdown-parent.component.ts b/aio/content/examples/component-interaction/src/app/countdown-parent.component.ts
index 5c2399d72182fe..193884b5b075e0 100644
--- a/aio/content/examples/component-interaction/src/app/countdown-parent.component.ts
+++ b/aio/content/examples/component-interaction/src/app/countdown-parent.component.ts
@@ -1,6 +1,6 @@
 // #docplaster
 // #docregion vc
-import { AfterViewInit, ViewChild } from '@angular/core';
+import { ViewChild } from '@angular/core';
 // #docregion lv
 import { Component } from '@angular/core';
 import { CountdownTimerComponent } from './countdown-timer.component';
@@ -37,19 +37,12 @@ export class CountdownLocalVarParentComponent { }
   `,
   styleUrls: ['../assets/demo.css']
 })
-export class CountdownViewChildParentComponent implements AfterViewInit {
+export class CountdownViewChildParentComponent {
 
   @ViewChild(CountdownTimerComponent)
   private timerComponent: CountdownTimerComponent;
 
-  seconds() { return 0; }
-
-  ngAfterViewInit() {
-    // Redefine `seconds()` to get from the `CountdownTimerComponent.seconds` ...
-    // but wait a tick first to avoid one-time devMode
-    // unidirectional-data-flow-violation error
-    setTimeout(() => this.seconds = () => this.timerComponent.seconds, 0);
-  }
+  seconds() { return this.timerComponent?.seconds ?? 0; }
 
   start() { this.timerComponent.start(); }
   stop() { this.timerComponent.stop(); }
diff --git a/aio/content/examples/component-interaction/src/app/countdown-timer.component.ts b/aio/content/examples/component-interaction/src/app/countdown-timer.component.ts
index dcc88334d0201e..cba4de07ac42a7 100644
--- a/aio/content/examples/component-interaction/src/app/countdown-timer.component.ts
+++ b/aio/content/examples/component-interaction/src/app/countdown-timer.component.ts
@@ -1,19 +1,16 @@
 // #docregion
-import { Component, OnDestroy, OnInit } from '@angular/core';
+import { Component, OnDestroy } from '@angular/core';
 
 @Component({
   selector: 'app-countdown-timer',
   template: '<p>{{message}}</p>'
 })
-export class CountdownTimerComponent implements OnInit, OnDestroy {
+export class CountdownTimerComponent implements OnDestroy {
 
   intervalId = 0;
   message = '';
   seconds = 11;
 
-  clearTimer() { clearInterval(this.intervalId); }
-
-  ngOnInit()    { this.start(); }
   ngOnDestroy() { this.clearTimer(); }
 
   start() { this.countDown(); }
@@ -22,6 +19,8 @@ export class CountdownTimerComponent implements OnInit, OnDestroy {
     this.message = `Holding at T-${this.seconds} seconds`;
   }
 
+  private clearTimer() { clearInterval(this.intervalId); }
+
   private countDown() {
     this.clearTimer();
     this.intervalId = window.setInterval(() => {