Change to LESS and Ivy

src/app/app-routing.module.ts

@@ -0,0 +1,10 @@
+import { NgModule } from '@angular/core';
+import { Routes, RouterModule } from '@angular/router';
+
+const routes: Routes = [];
+
+@NgModule({
+  imports: [RouterModule.forRoot(routes)],
+  exports: [RouterModule]
+})
+export class AppRoutingModule { }

src/app/app.component.html

@@ -18,3 +18,4 @@
   </li>
 </ul>
 
+<router-outlet></router-outlet>

src/app/app.component.spec.ts

@@ -1,31 +0,0 @@
-import { TestBed, async } from '@angular/core/testing';
-import { AppComponent } from './app.component';
-
-describe('AppComponent', () => {
-  beforeEach(async(() => {
-    TestBed.configureTestingModule({
-      declarations: [
-        AppComponent
-      ],
-    }).compileComponents();
-  }));
-
-  it('should create the app', () => {
-    const fixture = TestBed.createComponent(AppComponent);
-    const app = fixture.debugElement.componentInstance;
-    expect(app).toBeTruthy();
-  });
-
-  it(`should have as title 'PQ-Man'`, () => {
-    const fixture = TestBed.createComponent(AppComponent);
-    const app = fixture.debugElement.componentInstance;
-    expect(app.title).toEqual('PQ-Man');
-  });
-
-  it('should render title in a h1 tag', () => {
-    const fixture = TestBed.createComponent(AppComponent);
-    fixture.detectChanges();
-    const compiled = fixture.debugElement.nativeElement;
-    expect(compiled.querySelector('h1').textContent).toContain('Welcome to PQ-Man!');
-  });
-});

src/app/app.component.ts

@@ -3,7 +3,7 @@ import { Component } from '@angular/core';
 @Component({
   selector: 'app-root',
   templateUrl: './app.component.html',
-  styleUrls: ['./app.component.css']
+  styleUrls: ['./app.component.less']
 })
 export class AppComponent {
   title = 'PQ-Man';

src/app/app.module.ts

@@ -1,6 +1,7 @@
 import { BrowserModule } from '@angular/platform-browser';
 import { NgModule } from '@angular/core';
 
+import { AppRoutingModule } from './app-routing.module';
 import { AppComponent } from './app.component';
 
 @NgModule({
@@ -8,7 +9,8 @@ import { AppComponent } from './app.component';
     AppComponent
   ],
   imports: [
-    BrowserModule
+    BrowserModule,
+    AppRoutingModule
   ],
   providers: [],
   bootstrap: [AppComponent]