diff --git a/aio/src/app/embedded/api/api.service.spec.ts b/aio/src/app/embedded/api/api.service.spec.ts
index 51f6452c87..c7bf9b060c 100644
--- a/aio/src/app/embedded/api/api.service.spec.ts
+++ b/aio/src/app/embedded/api/api.service.spec.ts
@@ -54,7 +54,7 @@ describe('ApiService', () => {
 
   describe('#sections', () => {
     it('first subscriber should fetch sections', () => {
-      const data = [{name: 'a'}, {name: 'b'}];
+      const data = [{name: 'a', title: 'A', items: []}, {name: 'b', title: 'B', items: []}];
 
       service.sections.subscribe(sections => {
         expect(sections).toEqual(data);
@@ -64,7 +64,7 @@ describe('ApiService', () => {
     });
 
     it('second subscriber should get previous sections and NOT trigger refetch', () => {
-      const data = [{name: 'a'}, {name: 'b'}];
+      const data = [{name: 'a', title: 'A', items: []}, {name: 'b', title: 'B', items: []}];
       let subscriptions = 0;
 
       service.sections.subscribe(sections => {
@@ -99,7 +99,7 @@ describe('ApiService', () => {
       let connection: MockConnection;
       backend.connections.subscribe(c => connection = c);
 
-      let data = [{name: 'a'}, {name: 'b'}];
+      let data = [{name: 'a', title: 'A', items: []}, {name: 'b', title: 'B', items: []}];
 
       service.sections.subscribe(sections => {
         // called twice during this test
@@ -110,7 +110,7 @@ describe('ApiService', () => {
       connection.mockRespond(createResponse(data));
 
       // refresh/refetch
-      data = [{name: 'c'}];
+      data = [{name: 'c', title: 'C', items: []}];
       service.fetchSections();
       connection.mockRespond(createResponse(data));
 
diff --git a/aio/src/app/embedded/code/code-example.component.spec.ts b/aio/src/app/embedded/code/code-example.component.spec.ts
index 698adc2702..ce57a96106 100644
--- a/aio/src/app/embedded/code/code-example.component.spec.ts
+++ b/aio/src/app/embedded/code/code-example.component.spec.ts
@@ -87,7 +87,7 @@ describe('CodeExampleComponent', () => {
 class TestCodeComponent {
   @Input() code = '';
   @Input() language: string;
-  @Input() linenums: boolean | number;
+  @Input() linenums: string;
   @Input() path: string;
   @Input() region: string;
   @Input() hideCopy: boolean;
diff --git a/aio/src/app/embedded/code/code-example.component.ts b/aio/src/app/embedded/code/code-example.component.ts
index 95d954f840..9e9cad1dbb 100644
--- a/aio/src/app/embedded/code/code-example.component.ts
+++ b/aio/src/app/embedded/code/code-example.component.ts
@@ -26,7 +26,7 @@ export class CodeExampleComponent implements OnInit {
   classes: {};
   code: string;
   language: string;
-  linenums: boolean | number;
+  linenums: string;
   path: string;
   region: string;
   title: string;
@@ -36,7 +36,7 @@ export class CodeExampleComponent implements OnInit {
   isAvoid = false;
 
   constructor(private elementRef: ElementRef) {
-    const element = this.elementRef.nativeElement;
+    const element: HTMLElement = this.elementRef.nativeElement;
 
     this.language = element.getAttribute('language') || '';
     this.linenums = element.getAttribute('linenums');
diff --git a/aio/src/app/navigation/navigation.model.ts b/aio/src/app/navigation/navigation.model.ts
index 4bf10d4f04..0873fa3632 100644
--- a/aio/src/app/navigation/navigation.model.ts
+++ b/aio/src/app/navigation/navigation.model.ts
@@ -24,7 +24,7 @@ export interface NavigationViews {
  */
 export interface CurrentNode {
   url: string;
-  view: 'SideNav' | 'TopBar' | 'Footer';
+  view: string;
   nodes: NavigationNode[];
 }
 
diff --git a/aio/src/app/navigation/navigation.service.spec.ts b/aio/src/app/navigation/navigation.service.spec.ts
index dcf38469ad..be6bece23d 100644
--- a/aio/src/app/navigation/navigation.service.spec.ts
+++ b/aio/src/app/navigation/navigation.service.spec.ts
@@ -91,7 +91,7 @@ describe('NavigationService', () => {
     ];
 
     beforeEach(() => {
-      navService.navigationViews.subscribe(views => view = views.sideNav);
+      navService.navigationViews.subscribe(views => view = views['sideNav']);
       backend.connectionsArray[0].mockRespond(createResponse({sideNav}));
     });
 
@@ -191,7 +191,7 @@ describe('NavigationService', () => {
     });
 
     it('should ignore trailing slashes, hashes, and search params on URLs in the navmap', () => {
-      const cnode = {
+      const cnode: CurrentNode = {
         url: 'c',
         view: 'SideNav',
         nodes: [
@@ -216,17 +216,18 @@ describe('NavigationService', () => {
   });
 
   describe('versionInfo', () => {
+    const expectedVersionInfo = { raw: '4.0.0' } as VersionInfo;
     let versionInfo: VersionInfo;
 
     beforeEach(() => {
       navService.versionInfo.subscribe(info => versionInfo = info);
       backend.connectionsArray[0].mockRespond(createResponse({
-        __versionInfo: { raw: '4.0.0' }
+        __versionInfo: expectedVersionInfo
       }));
     });
 
     it('should extract the version info', () => {
-      expect(versionInfo).toEqual({ raw: '4.0.0' });
+      expect(versionInfo).toEqual(expectedVersionInfo);
     });
   });
 
@@ -246,7 +247,7 @@ describe('NavigationService', () => {
         {...v, ...{ tooltip: v.title + '.'}})
       );
 
-      navService.navigationViews.subscribe(views => actualDocVersions = views.docVersions);
+      navService.navigationViews.subscribe(views => actualDocVersions = views['docVersions']);
     });
 
     it('should extract the docVersions', () => {
diff --git a/aio/src/app/shared/location.service.spec.ts b/aio/src/app/shared/location.service.spec.ts
index 72862e61e3..55a78a92c6 100644
--- a/aio/src/app/shared/location.service.spec.ts
+++ b/aio/src/app/shared/location.service.spec.ts
@@ -278,7 +278,7 @@ describe('LocationService', () => {
 
         service.go(testUrl);
         expect(url).toEqual(initialUrl, 'should not have re-navigated locally');
-        expect(goExternalSpy.wasCalled).toBeFalsy('should not have navigated externally');
+        expect(goExternalSpy).not.toHaveBeenCalled();
       };
     }
 
diff --git a/aio/src/app/shared/toc.service.spec.ts b/aio/src/app/shared/toc.service.spec.ts
index 9232e3ba82..15b3217319 100644
--- a/aio/src/app/shared/toc.service.spec.ts
+++ b/aio/src/app/shared/toc.service.spec.ts
@@ -32,6 +32,8 @@ describe('TocService', () => {
 
   describe('tocList', () => {
     it('should emit the latest value to new subscribers', () => {
+      const expectedValue1 = {} as TocItem;
+      const expectedValue2 = {} as TocItem;
       let value1: TocItem[];
       let value2: TocItem[];
 
@@ -39,21 +41,23 @@ describe('TocService', () => {
       tocService.tocList.subscribe(v => value1 = v);
       expect(value1).toEqual([]);
 
-      tocService.tocList.next([{}, {}] as TocItem[]);
+      tocService.tocList.next([expectedValue1, expectedValue2] as TocItem[]);
       tocService.tocList.subscribe(v => value2 = v);
-      expect(value2).toEqual([{}, {}]);
+      expect(value2).toEqual([expectedValue1, expectedValue2]);
     });
 
     it('should emit the same values to all subscribers', () => {
+      const expectedValue1 = {} as TocItem;
+      const expectedValue2 = {} as TocItem;
       const emittedValues: TocItem[][] = [];
 
       tocService.tocList.subscribe(v => emittedValues.push(v));
       tocService.tocList.subscribe(v => emittedValues.push(v));
-      tocService.tocList.next([{ title: 'A' }, { title: 'B' }] as TocItem[]);
+      tocService.tocList.next([expectedValue1, expectedValue2] as TocItem[]);
 
       expect(emittedValues).toEqual([
-        [{ title: 'A' }, { title: 'B' }],
-        [{ title: 'A' }, { title: 'B' }]
+        [expectedValue1, expectedValue2],
+        [expectedValue1, expectedValue2]
       ]);
     });
   });