1 components

src/app/app.component.html

@@ -7,21 +7,13 @@
 
 
 <div class="courses">
+  <!-- there is an instance of the course card component for each card -->
+  <!-- we have defined course : Course as an attribute of course card component -->
+  <!-- courseSelected is not a standard dom event -->
+  <course-card (courseSelected)="onCourseSelected($event)" [course]="coreCourse"></course-card>
+  <course-card (courseSelected)="onCourseSelected($event)" [course]="rjsCourse"></course-card>
+  <course-card (courseSelected)="onCourseSelected($event)" [course]="ngrxCourse"></course-card>
+<!-- we can see that the course card is visible because we have added this html in our AppComponent template -->
 
-    <div class="course-card">
-
-        <div class="course-title">
-            Angular Core Deep Dive
-        </div>
-        <img width="300" alt="Angular Logo"
-             src="https://s3-us-west-1.amazonaws.com/angular-university/course-images/angular-core-in-depth-small.png">
-
-        <div class="course-description">
-            A detailed walk-through of the most important part of Angular - the Core and Common modules.
-        </div>
-
-    </div>
 
 </div>
-
-

src/app/app.component.ts

@@ -1,13 +1,31 @@
 import { Component } from '@angular/core';
 import {COURSES} from '../db-data';
+import { Course } from './model/course';
 
 @Component({
   selector: 'app-root',
   templateUrl: './app.component.html',
   styleUrls: ['./app.component.css']
 })
 export class AppComponent {
-
+// this is how we make available the course objects so that we can display different course cards
+// now these are available in the AppComponent template
+// { this is how the elements of array COURSES look like
+//     id: 1,
+//     description: "Angular Core Deep Dive",
+//     iconUrl: 'https://s3-us-west-1.amazonaws.com/angular-university/course-images/angular-core-in-depth-small.png',
+//     longDescription: "A detailed walk-through of the most important part of Angular - the Core and Common modules",
+//     category: 'INTERMEDIATE',
+//     lessonsCount: 10
+// }
+// these are defined in db-data.ts
+// bexause we are displaying these in the template of the app component
+    coreCourse = COURSES[0];
+    rjsCourse = COURSES[1];
+    ngrxCourse = COURSES[2];
+    onCourseSelected(course: Course) {
+      console.log("App component - click event bubbled...", course)
+    }
 
 
 }

src/app/app.module.ts

@@ -3,10 +3,12 @@ import { NgModule } from '@angular/core';
 
 import { AppComponent } from './app.component';
 import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
+import { CourseCardComponent } from './course-card/course-card.component';
 
 @NgModule({
   declarations: [
-    AppComponent
+    AppComponent,
+    CourseCardComponent
   ],
   imports: [
     BrowserModule,

src/app/course-card/course-card.component.css

@@ -0,0 +1 @@
+/* we will  */

src/app/course-card/course-card.component.html

@@ -0,0 +1,15 @@
+
+<div class="course-card">
+
+    <div class="course-title">
+        <!-- Angular Core Deep Dive -->
+        {{ course.description }}
+    </div>
+    <img width="300" alt="Angular Logo"
+     [src]="course.iconUrl">
+    <div class="course-description">
+        {{ course.longDescription }}
+    </div>
+    <button (click)="onCourseViewed()">View Course</button>
+
+</div>

src/app/course-card/course-card.component.spec.ts

@@ -0,0 +1,26 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { CourseCardComponent } from './course-card.component';
+
+describe('CourseCardComponent', () => {
+  let component: CourseCardComponent;
+  let fixture: ComponentFixture<CourseCardComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ CourseCardComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(CourseCardComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});
+// another comment

src/app/course-card/course-card.component.ts

@@ -0,0 +1,30 @@
+import { Component, EventEmitter, OnInit , Input, Output} from '@angular/core';
+import { COURSES } from '../../db-data';
+import { Course } from '../model/course';
+
+@Component({
+  selector: 'course-card', // defines html tag
+  templateUrl: './course-card.component.html',
+  styleUrls: ['./course-card.component.css']
+})
+export class CourseCardComponent implements OnInit {
+//need to import Input or it will not compile!!
+  @Input()
+  course: Course; //  from the model folder
+
+  // emit custom event (note the type Course passed)
+  @Output()
+  courseSelected = new EventEmitter<Course>();
+
+  constructor() { }
+
+  ngOnInit(): void {
+  }
+
+  onCourseViewed() {
+    console.log("card component button clicked");
+    this.courseSelected.emit(this.course);
+  }
+
+}
+// comment