diff --git a/aio/src/app/app.component.ts b/aio/src/app/app.component.ts
index b9342e147f..a4caa5d5e7 100644
--- a/aio/src/app/app.component.ts
+++ b/aio/src/app/app.component.ts
@@ -144,10 +144,10 @@ export class AppComponent implements OnInit {
     });
 
     // Compute the version picker list from the current version and the versions in the navigation map
-    combineLatest(
+    combineLatest([
       this.navigationService.versionInfo,
-      this.navigationService.navigationViews.pipe(map(views => views['docVersions'])))
-      .subscribe(([versionInfo, versions]) => {
+      this.navigationService.navigationViews.pipe(map(views => views['docVersions'])),
+    ]).subscribe(([versionInfo, versions]) => {
         // TODO(pbd): consider whether we can lookup the stable and next versions from the internet
         const computedVersions: NavigationNode[] = [
           { title: 'next', url: 'https://next.angular.io' },
@@ -175,7 +175,7 @@ export class AppComponent implements OnInit {
     this.navigationService.versionInfo.subscribe(vi => this.versionInfo = vi);
 
     const hasNonEmptyToc = this.tocService.tocList.pipe(map(tocList => tocList.length > 0));
-    combineLatest(hasNonEmptyToc, this.showFloatingToc)
+    combineLatest([hasNonEmptyToc, this.showFloatingToc])
         .subscribe(([hasToc, showFloatingToc]) => this.hasFloatingToc = hasToc && showFloatingToc);
 
     // Generally, we want to delay updating the shell (e.g. host classes, sidenav state) for the new
@@ -183,10 +183,10 @@ export class AppComponent implements OnInit {
     // the new document applied prematurely).
     // For the first document, though, (when we know there is no previous document), we want to
     // ensure the styles are applied as soon as possible to avoid flicker.
-    combineLatest(
+    combineLatest([
       this.documentService.currentDocument,  // ...needed to determine host classes
-      this.navigationService.currentNodes)   // ...needed to determine `sidenav` state
-      .pipe(first())
+      this.navigationService.currentNodes,   // ...needed to determine `sidenav` state
+    ]).pipe(first())
       .subscribe(() => this.updateShell());
   }
 
diff --git a/aio/src/app/custom-elements/announcement-bar/announcement-bar.component.spec.ts b/aio/src/app/custom-elements/announcement-bar/announcement-bar.component.spec.ts
index 23069f019b..99df0564ee 100644
--- a/aio/src/app/custom-elements/announcement-bar/announcement-bar.component.spec.ts
+++ b/aio/src/app/custom-elements/announcement-bar/announcement-bar.component.spec.ts
@@ -25,8 +25,8 @@ describe('AnnouncementBarComponent', () => {
       providers: [{ provide: Logger, useClass: MockLogger }]
     });
 
-    httpMock = injector.get(HttpTestingController);
-    mockLogger = injector.get(Logger);
+    httpMock = injector.inject(HttpTestingController);
+    mockLogger = injector.inject(Logger) as any;
     fixture = TestBed.createComponent(AnnouncementBarComponent);
     component = fixture.componentInstance;
     element = fixture.nativeElement;
diff --git a/aio/src/app/custom-elements/api/api-list.component.ts b/aio/src/app/custom-elements/api/api-list.component.ts
index 4ef0d578ed..2adf78aec9 100644
--- a/aio/src/app/custom-elements/api/api-list.component.ts
+++ b/aio/src/app/custom-elements/api/api-list.component.ts
@@ -69,10 +69,10 @@ export class ApiListComponent implements OnInit {
 
   ngOnInit() {
     this.filteredSections =
-        combineLatest(
+        combineLatest([
           this.apiService.sections,
-          this.criteriaSubject
-        ).pipe(
+          this.criteriaSubject,
+        ]).pipe(
           map( results => ({ sections: results[0], criteria: results[1]})),
           map( results => (
                results.sections
diff --git a/aio/src/app/custom-elements/api/api.service.spec.ts b/aio/src/app/custom-elements/api/api.service.spec.ts
index 58d287acbe..9f3c482d98 100644
--- a/aio/src/app/custom-elements/api/api.service.spec.ts
+++ b/aio/src/app/custom-elements/api/api.service.spec.ts
@@ -35,11 +35,7 @@ describe('ApiService', () => {
   it('subscribers should be completed/unsubscribed when service destroyed', () => {
       let completed = false;
 
-      service.sections.subscribe(
-        undefined,
-        undefined,
-        () => completed = true
-      );
+      service.sections.subscribe({complete: () => completed = true});
 
       service.ngOnDestroy();
       expect(completed).toBe(true);
diff --git a/aio/src/app/custom-elements/contributor/contributor.service.spec.ts b/aio/src/app/custom-elements/contributor/contributor.service.spec.ts
index c5d2599e37..93877ea972 100644
--- a/aio/src/app/custom-elements/contributor/contributor.service.spec.ts
+++ b/aio/src/app/custom-elements/contributor/contributor.service.spec.ts
@@ -43,7 +43,7 @@ describe('ContributorService', () => {
 
     it('contributors observable should complete', () => {
       let completed = false;
-      contribService.contributors.subscribe(undefined, undefined, () => completed = true);
+      contribService.contributors.subscribe({complete: () => completed = true});
       expect(completed).toBe(true, 'observable completed');
     });
 
diff --git a/aio/src/app/custom-elements/elements-loader.spec.ts b/aio/src/app/custom-elements/elements-loader.spec.ts
index ba4584d18b..48c188df1b 100644
--- a/aio/src/app/custom-elements/elements-loader.spec.ts
+++ b/aio/src/app/custom-elements/elements-loader.spec.ts
@@ -35,8 +35,8 @@ describe('ElementsLoader', () => {
       ]
     });
 
-    elementsLoader = injector.get(ElementsLoader);
-    compiler = injector.get(Compiler);
+    elementsLoader = injector.inject(ElementsLoader);
+    compiler = injector.inject(Compiler);
   });
 
   describe('loadContainedCustomElements()', () => {
diff --git a/aio/src/app/custom-elements/lazy-custom-element.component.spec.ts b/aio/src/app/custom-elements/lazy-custom-element.component.spec.ts
index 5bb0eeefa5..d44d1cb64a 100644
--- a/aio/src/app/custom-elements/lazy-custom-element.component.spec.ts
+++ b/aio/src/app/custom-elements/lazy-custom-element.component.spec.ts
@@ -23,7 +23,7 @@ describe('LazyCustomElementComponent', () => {
       ],
     });
 
-    mockLogger = injector.get(Logger);
+    mockLogger = injector.inject(Logger) as any;
     fixture = TestBed.createComponent(LazyCustomElementComponent);
   });
 
diff --git a/aio/src/app/custom-elements/resource/resource.service.spec.ts b/aio/src/app/custom-elements/resource/resource.service.spec.ts
index e376268df6..5517dc60e7 100644
--- a/aio/src/app/custom-elements/resource/resource.service.spec.ts
+++ b/aio/src/app/custom-elements/resource/resource.service.spec.ts
@@ -43,7 +43,7 @@ describe('ResourceService', () => {
 
     it('categories observable should complete', () => {
       let completed = false;
-      resourceService.categories.subscribe(undefined, undefined, () => completed = true);
+      resourceService.categories.subscribe({complete: () => completed = true});
       expect(completed).toBe(true, 'observable completed');
     });
 
diff --git a/aio/src/app/custom-elements/toc/toc.component.spec.ts b/aio/src/app/custom-elements/toc/toc.component.spec.ts
index 57e831be4a..3dc17586cb 100644
--- a/aio/src/app/custom-elements/toc/toc.component.spec.ts
+++ b/aio/src/app/custom-elements/toc/toc.component.spec.ts
@@ -1,7 +1,7 @@
 import { Component, CUSTOM_ELEMENTS_SCHEMA, DebugElement } from '@angular/core';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { By } from '@angular/platform-browser';
-import { asapScheduler as asap, BehaviorSubject } from 'rxjs';
+import { asapScheduler, BehaviorSubject } from 'rxjs';
 
 import { ScrollService } from 'app/shared/scroll.service';
 import { TocItem, TocService } from 'app/shared/toc.service';
@@ -465,10 +465,11 @@ class TestScrollService {
 class TestTocService {
   tocList = new BehaviorSubject<TocItem[]>(getTestTocList());
   activeItemIndex = new BehaviorSubject<number | null>(null);
+
   setActiveIndex(index: number|null) {
     this.activeItemIndex.next(index);
-    if (asap.scheduled !== undefined) {
-      asap.flush();
+    if (asapScheduler.actions.length > 0) {
+      asapScheduler.flush();
     }
   }
 }
diff --git a/aio/src/app/custom-elements/toc/toc.component.ts b/aio/src/app/custom-elements/toc/toc.component.ts
index 0cbab775b6..ceb6ce821a 100644
--- a/aio/src/app/custom-elements/toc/toc.component.ts
+++ b/aio/src/app/custom-elements/toc/toc.component.ts
@@ -52,7 +52,10 @@ export class TocComponent implements OnInit, AfterViewInit, OnDestroy {
       // We use the `asap` scheduler because updates to `activeItemIndex` are triggered by DOM changes,
       // which, in turn, are caused by the rendering that happened due to a ChangeDetection.
       // Without asap, we would be updating the model while still in a ChangeDetection handler, which is disallowed by Angular.
-      combineLatest(this.tocService.activeItemIndex.pipe(subscribeOn(asapScheduler)), this.items.changes.pipe(startWith(this.items)))
+      combineLatest([
+        this.tocService.activeItemIndex.pipe(subscribeOn(asapScheduler)),
+        this.items.changes.pipe(startWith(this.items)),
+      ])
           .pipe(takeUntil(this.onDestroy))
           .subscribe(([index, items]) => {
             this.activeIndex = index;
diff --git a/aio/src/app/documents/document.service.spec.ts b/aio/src/app/documents/document.service.spec.ts
index 56306780df..756651c1ce 100644
--- a/aio/src/app/documents/document.service.spec.ts
+++ b/aio/src/app/documents/document.service.spec.ts
@@ -30,11 +30,11 @@ describe('DocumentService', () => {
 
   function getServices(initialUrl: string = '') {
     const injector = createInjector(initialUrl);
-    httpMock = injector.get(HttpTestingController) as HttpTestingController;
+    httpMock = injector.inject(HttpTestingController);
     return {
-      locationService: injector.get(LocationService) as MockLocationService,
-      docService: injector.get(DocumentService) as DocumentService,
-      logger: injector.get(Logger) as MockLogger
+      locationService: injector.inject(LocationService) as any as MockLocationService,
+      docService: injector.inject(DocumentService) as any as DocumentService,
+      logger: injector.inject(Logger) as any as MockLogger,
     };
   }
 
diff --git a/aio/src/app/navigation/navigation.service.spec.ts b/aio/src/app/navigation/navigation.service.spec.ts
index 541ec5bd14..028b357979 100644
--- a/aio/src/app/navigation/navigation.service.spec.ts
+++ b/aio/src/app/navigation/navigation.service.spec.ts
@@ -47,7 +47,7 @@ describe('NavigationService', () => {
 
     it('navigationViews observable should complete', () => {
       let completed = false;
-      navService.navigationViews.subscribe(undefined, undefined, () => completed = true);
+      navService.navigationViews.subscribe({complete: () => completed = true});
 
       httpMock.expectOne({method: 'get', url: navigationPath}).flush({});
       expect(completed).toBe(true, 'observable completed');
diff --git a/aio/src/app/navigation/navigation.service.ts b/aio/src/app/navigation/navigation.service.ts
index 87bd602763..06162678ff 100644
--- a/aio/src/app/navigation/navigation.service.ts
+++ b/aio/src/app/navigation/navigation.service.ts
@@ -90,11 +90,12 @@ export class NavigationService {
    * See above for discussion of using `connect`.
    */
   private getCurrentNodes(navigationViews: Observable<NavigationViews>): Observable<CurrentNodes> {
-    const currentNodes = combineLatest(
+    const currentNodes = combineLatest([
       navigationViews.pipe(
           map(views => this.computeUrlToNavNodesMap(views))),
-          this.location.currentPath,
-      ).pipe(
+      this.location.currentPath,
+    ])
+      .pipe(
         map((result) => ({navMap: result[0] , url: result[1]})),
         map((result) => {
         const matchSpecialUrls = /^api/.exec(result.url);
diff --git a/aio/src/app/shared/reporting-error-handler.spec.ts b/aio/src/app/shared/reporting-error-handler.spec.ts
index e8aef4440b..a7389824d4 100644
--- a/aio/src/app/shared/reporting-error-handler.spec.ts
+++ b/aio/src/app/shared/reporting-error-handler.spec.ts
@@ -22,7 +22,7 @@ describe('ReportingErrorHandler service', () => {
   });
 
   it('should be registered on the AppModule', () => {
-    handler = TestBed.configureTestingModule({ imports: [AppModule] }).get(ErrorHandler);
+    handler = TestBed.configureTestingModule({ imports: [AppModule] }).inject(ErrorHandler) as any;
     expect(handler).toEqual(jasmine.any(ReportingErrorHandler));
   });