diff --git a/src/app/+item-page/edit-item-page/edit-item-page.module.ts b/src/app/+item-page/edit-item-page/edit-item-page.module.ts
index 6d86e7f35c73f6d5410e45b0569fa8758f591ce0..5eda9aef101c1b143ed10bc997e67080cb0d58ac 100644
--- a/src/app/+item-page/edit-item-page/edit-item-page.module.ts
+++ b/src/app/+item-page/edit-item-page/edit-item-page.module.ts
@@ -21,7 +21,7 @@ import { ItemRelationshipsComponent } from './item-relationships/item-relationsh
 import { EditRelationshipComponent } from './item-relationships/edit-relationship/edit-relationship.component';
 import { EditRelationshipListComponent } from './item-relationships/edit-relationship-list/edit-relationship-list.component';
 import { ItemMoveComponent } from './item-move/item-move.component';
-import {VirtualMetadataComponent} from "./virtual-metadata/virtual-metadata.component";
+import {VirtualMetadataComponent} from './virtual-metadata/virtual-metadata.component';
 
 /**
  * Module that contains all components related to the Edit Item page administrator functionality
diff --git a/src/app/+item-page/edit-item-page/item-relationships/edit-relationship-list/edit-relationship-list.component.ts b/src/app/+item-page/edit-item-page/item-relationships/edit-relationship-list/edit-relationship-list.component.ts
index e7d1a1420020b3a1463cf6b9e29fdb6c8d7e4fd1..7645b2b4b74c09fd6dade827188a62ab867056d3 100644
--- a/src/app/+item-page/edit-item-page/item-relationships/edit-relationship-list/edit-relationship-list.component.ts
+++ b/src/app/+item-page/edit-item-page/item-relationships/edit-relationship-list/edit-relationship-list.component.ts
@@ -6,7 +6,7 @@ import { RelationshipService } from '../../../../core/data/relationship.service'
 import { Item } from '../../../../core/shared/item.model';
 import { map, switchMap} from 'rxjs/operators';
 import { hasValue } from '../../../../shared/empty.util';
-import {Relationship} from "../../../../core/shared/item-relationships/relationship.model";
+import {Relationship} from '../../../../core/shared/item-relationships/relationship.model';
 
 @Component({
   selector: 'ds-edit-relationship-list',
@@ -66,7 +66,7 @@ export class EditRelationshipListComponent implements OnInit, OnChanges {
    */
   public getUpdatesByLabel(label: string): Observable<FieldUpdates> {
     return this.relationshipService.getItemRelationshipsByLabel(this.item, label).pipe(
-      map(relationsRD => relationsRD.payload.page.map(relationship =>
+      map((relationsRD) => relationsRD.payload.page.map((relationship) =>
         Object.assign(new Relationship(), relationship, {uuid: relationship.id})
       )),
       switchMap((initialFields) => this.objectUpdatesService.getFieldUpdatesExclusive(this.url, initialFields)),
diff --git a/src/app/+item-page/edit-item-page/item-relationships/edit-relationship/edit-relationship.component.ts b/src/app/+item-page/edit-item-page/item-relationships/edit-relationship/edit-relationship.component.ts
index 7c1780da58ef8e9386fcb212ca340a2a70b7ab12..220582a5fd3449ffaa1a1e6fe144c8ee1b5c48d4 100644
--- a/src/app/+item-page/edit-item-page/item-relationships/edit-relationship/edit-relationship.component.ts
+++ b/src/app/+item-page/edit-item-page/item-relationships/edit-relationship/edit-relationship.component.ts
@@ -9,7 +9,7 @@ import {Item} from '../../../../core/shared/item.model';
 import {getRemoteDataPayload, getSucceededRemoteData} from '../../../../core/shared/operators';
 import {ViewMode} from '../../../../core/shared/view-mode.model';
 import {hasValue, isNotEmpty} from '../../../../shared/empty.util';
-import {NgbModal, NgbModalRef} from "@ng-bootstrap/ng-bootstrap";
+import {NgbModal, NgbModalRef} from '@ng-bootstrap/ng-bootstrap';
 
 @Component({
   // tslint:disable-next-line:component-selector
@@ -53,6 +53,11 @@ export class EditRelationshipComponent implements OnChanges {
    */
   viewMode = ViewMode.ListElement;
 
+  /**
+   * Reference to NgbModal
+   */
+  public modalRef: NgbModalRef;
+
   constructor(
     private objectUpdatesService: ObjectUpdatesService,
     private modalService: NgbModal,
@@ -93,17 +98,16 @@ export class EditRelationshipComponent implements OnChanges {
       this.rightItem$,
     ).pipe(
       map((items: Item[]) =>
-        items.map(item => this.objectUpdatesService
+        items.map((item) => this.objectUpdatesService
           .isSelectedVirtualMetadataItem(this.url, this.relationship.id, item.uuid))
       ),
-      switchMap((selection$: Observable<boolean>[]) => observableCombineLatest(selection$)),
+      switchMap((selection$) => observableCombineLatest(selection$)),
       map((selection: boolean[]) => {
         return Object.assign({},
           this.fieldUpdate.field,
           {
-            uuid: this.relationship.id,
-            keepLeftVirtualMetadata: selection[0] == true,
-            keepRightVirtualMetadata: selection[1] == true,
+            keepLeftVirtualMetadata: selection[0] === true,
+            keepRightVirtualMetadata: selection[1] === true,
           }
         ) as DeleteRelationship
       }),
@@ -113,11 +117,6 @@ export class EditRelationshipComponent implements OnChanges {
     );
   }
 
-  /**
-   * Reference to NgbModal
-   */
-  public modalRef: NgbModalRef;
-
   openVirtualMetadataModal(content: any) {
     this.modalRef = this.modalService.open(content);
   }
diff --git a/src/app/+item-page/edit-item-page/item-relationships/item-relationships.component.ts b/src/app/+item-page/edit-item-page/item-relationships/item-relationships.component.ts
index 92b138e962d656daf91e28caf27f18a46627c316..fadba3b981393fa1f815ecfe6014e0ef0e7616cd 100644
--- a/src/app/+item-page/edit-item-page/item-relationships/item-relationships.component.ts
+++ b/src/app/+item-page/edit-item-page/item-relationships/item-relationships.component.ts
@@ -110,7 +110,7 @@ export class ItemRelationshipsComponent extends AbstractItemUpdateComponent impl
   public submit(): void {
     // Get all the relationships that should be removed
     const removedRelationshipIDs$ = this.relationshipService.getItemRelationshipsArray(this.item).pipe(
-      map((relationships: Relationship[]) => relationships.map(relationship =>
+      map((relationships: Relationship[]) => relationships.map((relationship) =>
         Object.assign(new Relationship(), relationship, {uuid: relationship.id})
       )),
       switchMap((relationships: Relationship[]) => {
@@ -124,7 +124,7 @@ export class ItemRelationshipsComponent extends AbstractItemUpdateComponent impl
       take(1),
       switchMap((deleteRelationships: DeleteRelationship[]) =>
         observableZip(...deleteRelationships.map((deleteRelationship) => {
-            let copyVirtualMetadata : string;
+            let copyVirtualMetadata: string;
             if (deleteRelationship.keepLeftVirtualMetadata && deleteRelationship.keepRightVirtualMetadata) {
               copyVirtualMetadata = 'all';
             } else if (deleteRelationship.keepLeftVirtualMetadata) {
diff --git a/src/app/+item-page/edit-item-page/virtual-metadata/virtual-metadata.component.ts b/src/app/+item-page/edit-item-page/virtual-metadata/virtual-metadata.component.ts
index c3379750a2f99728678d3feb4ce88566487bdef2..170c3aec0c80245369a2ceb8dd13072d91cc8a29 100644
--- a/src/app/+item-page/edit-item-page/virtual-metadata/virtual-metadata.component.ts
+++ b/src/app/+item-page/edit-item-page/virtual-metadata/virtual-metadata.component.ts
@@ -1,11 +1,11 @@
 import {Component, EventEmitter, Input, OnChanges, Output} from '@angular/core';
 import {ActivatedRoute} from '@angular/router';
 import {Observable} from 'rxjs';
-import {Item} from "../../../core/shared/item.model";
-import {Relationship} from "../../../core/shared/item-relationships/relationship.model";
-import {MetadataValue} from "../../../core/shared/metadata.models";
-import {getRemoteDataPayload, getSucceededRemoteData} from "../../../core/shared/operators";
-import {ObjectUpdatesService} from "../../../core/data/object-updates/object-updates.service";
+import {Item} from '../../../core/shared/item.model';
+import {Relationship} from '../../../core/shared/item-relationships/relationship.model';
+import {MetadataValue} from '../../../core/shared/metadata.models';
+import {getRemoteDataPayload, getSucceededRemoteData} from '../../../core/shared/operators';
+import {ObjectUpdatesService} from '../../../core/data/object-updates/object-updates.service';
 
 @Component({
   selector: 'ds-virtual-metadata',
@@ -26,15 +26,15 @@ export class VirtualMetadataComponent implements OnChanges {
   @Output() close = new EventEmitter();
   @Output() save = new EventEmitter();
 
+  leftItem$: Observable<Item>;
+  rightItem$: Observable<Item>;
+
   constructor(
     protected route: ActivatedRoute,
     protected objectUpdatesService: ObjectUpdatesService,
   ) {
   }
 
-  leftItem$: Observable<Item>;
-  rightItem$: Observable<Item>;
-
   ngOnChanges(): void {
     this.leftItem$ = this.relationship.leftItem.pipe(
       getSucceededRemoteData(),
diff --git a/src/app/core/data/object-updates/object-updates.reducer.ts b/src/app/core/data/object-updates/object-updates.reducer.ts
index 41d1704797c194f9895dcb952fe50c56c9dedfda..daf7555692e93c9b31a1f71fd5fc70e9e2e9b752 100644
--- a/src/app/core/data/object-updates/object-updates.reducer.ts
+++ b/src/app/core/data/object-updates/object-updates.reducer.ts
@@ -13,7 +13,7 @@ import {
   SelectVirtualMetadataAction,
 } from './object-updates.actions';
 import { hasNoValue, hasValue } from '../../../shared/empty.util';
-import {Relationship} from "../../shared/item-relationships/relationship.model";
+import {Relationship} from '../../shared/item-relationships/relationship.model';
 
 /**
  * Path where discarded objects are saved
diff --git a/src/app/core/data/object-updates/object-updates.service.ts b/src/app/core/data/object-updates/object-updates.service.ts
index 0e8b1c8d07f06757843cd9a8f99273351478d9da..5063a8a005e1a852c220d143481fdddf3cb92765 100644
--- a/src/app/core/data/object-updates/object-updates.service.ts
+++ b/src/app/core/data/object-updates/object-updates.service.ts
@@ -26,10 +26,10 @@ import {
 import {distinctUntilChanged, filter, map} from 'rxjs/operators';
 import {hasNoValue, hasValue, isEmpty, isNotEmpty} from '../../../shared/empty.util';
 import {INotification} from '../../../shared/notifications/models/notification.model';
-import {Item} from "../../shared/item.model";
-import {Relationship} from "../../shared/item-relationships/relationship.model";
-import {MetadataValue} from "../../shared/metadata.models";
-import {VirtualMetadata} from "../../../+item-page/edit-item-page/virtual-metadata/virtual-metadata.component";
+import {Item} from '../../shared/item.model';
+import {Relationship} from '../../shared/item-relationships/relationship.model';
+import {MetadataValue} from '../../shared/metadata.models';
+import {VirtualMetadata} from '../../../+item-page/edit-item-page/virtual-metadata/virtual-metadata.component';
 
 function objectUpdatesStateSelector(): MemoizedSelector<CoreState, ObjectUpdatesState> {
   return createSelector(coreSelector, (state: CoreState) => state['cache/object-updates']);
@@ -226,7 +226,7 @@ export class ObjectUpdatesService {
     return this.store
       .pipe(
         select(virtualMetadataSourceSelector(url, relationship)),
-        map(virtualMetadataSource => virtualMetadataSource && virtualMetadataSource[item]),
+        map((virtualMetadataSource) => virtualMetadataSource && virtualMetadataSource[item]),
     );
   }
 
diff --git a/src/app/core/data/relationship.service.ts b/src/app/core/data/relationship.service.ts
index a4a24e8aaa08c994e13ee463d094848af4051bc2..895cb46ed1f93cb7fa09a451b8e435e81244cd4f 100644
--- a/src/app/core/data/relationship.service.ts
+++ b/src/app/core/data/relationship.service.ts
@@ -88,7 +88,7 @@ export class RelationshipService extends DataService<Relationship> {
       isNotEmptyOperator(),
       distinctUntilChanged(),
       map((endpointURL: string) =>
-        new DeleteRequest(this.requestService.generateRequestId(), endpointURL + "?copyVirtualMetadata=" + copyVirtualMetadata)
+        new DeleteRequest(this.requestService.generateRequestId(), endpointURL + '?copyVirtualMetadata=' + copyVirtualMetadata)
       ),
       configureRequest(this.requestService),
       switchMap((restRequest: RestRequest) => this.requestService.getByUUID(restRequest.uuid)),