diff --git a/src/app/+admin/admin-import-metadata-page/metadata-import-page.component.ts b/src/app/+admin/admin-import-metadata-page/metadata-import-page.component.ts
index 0fff7fe5b1..4a9b86d7e3 100644
--- a/src/app/+admin/admin-import-metadata-page/metadata-import-page.component.ts
+++ b/src/app/+admin/admin-import-metadata-page/metadata-import-page.component.ts
@@ -67,8 +67,8 @@ export class MetadataImportPageComponent implements OnInit {
     );
     this.uploaderId = 'ds-drag-and-drop-uploader' + uniqueId();
     this.isOverDocumentDropZone = observableOf(false);
-    window.addEventListener('drop', e => {
-      e && e.preventDefault();
+    window.addEventListener('drop', (e: DragEvent) => {
+      return e && e.preventDefault();
     }, false);
     this.uploader = new FileUploader({
       // required, but using onFileDrop, not uploader
diff --git a/src/app/core/data/processes/script-data.service.ts b/src/app/core/data/processes/script-data.service.ts
index 34fa24cfff..cecfeabf18 100644
--- a/src/app/core/data/processes/script-data.service.ts
+++ b/src/app/core/data/processes/script-data.service.ts
@@ -21,8 +21,8 @@ import { dataService } from '../../cache/builders/build-decorators';
 import { SCRIPT } from '../../../process-page/scripts/script.resource-type';
 import { hasValue } from '../../../shared/empty.util';
 
-export const METADATA_IMPORT_SCRIPT_NAME: string = 'metadata-import';
-export const METADATA_EXPORT_SCRIPT_NAME: string = 'metadata-export';
+export const METADATA_IMPORT_SCRIPT_NAME = 'metadata-import';
+export const METADATA_EXPORT_SCRIPT_NAME = 'metadata-export';
 
 @Injectable()
 @dataService(SCRIPT)
diff --git a/src/app/shared/dso-selector/dso-selector/dso-selector.component.ts b/src/app/shared/dso-selector/dso-selector/dso-selector.component.ts
index 04cfd32e3b..551a7e458a 100644
--- a/src/app/shared/dso-selector/dso-selector/dso-selector.component.ts
+++ b/src/app/shared/dso-selector/dso-selector/dso-selector.component.ts
@@ -99,7 +99,7 @@ export class DSOSelectorComponent implements OnInit {
             return this.searchService.search(
               new PaginatedSearchOptions({
                 query: query,
-                dsoType: this.type != DSpaceObjectType.DSPACEOBJECT ? this.type : null,
+                dsoType: this.type !== DSpaceObjectType.DSPACEOBJECT ? this.type : null,
                 pagination: this.defaultPagination
               })
             )
diff --git a/src/app/shared/menu/menu-section/menu-section.component.ts b/src/app/shared/menu/menu-section/menu-section.component.ts
index 4dfe6589f7..9657422084 100644
--- a/src/app/shared/menu/menu-section/menu-section.component.ts
+++ b/src/app/shared/menu/menu-section/menu-section.component.ts
@@ -18,7 +18,7 @@ import { BehaviorSubject } from 'rxjs';
   selector: 'ds-menu-section',
   template: ''
 })
-export class MenuSectionComponent implements OnInit, OnDestroy{
+export class MenuSectionComponent implements OnInit, OnDestroy {
 
   /**
    * Observable that emits whether or not this section is currently active
@@ -43,7 +43,6 @@ export class MenuSectionComponent implements OnInit, OnDestroy{
     component: GenericConstructor<MenuSectionComponent>
   }>> = new BehaviorSubject(new Map());
 
-
   /**
    * Array to track all subscriptions and unsubscribe them onDestroy
    * @type {Array}
diff --git a/src/app/shared/menu/menu.component.ts b/src/app/shared/menu/menu.component.ts
index 808631256d..398167cb39 100644
--- a/src/app/shared/menu/menu.component.ts
+++ b/src/app/shared/menu/menu.component.ts
@@ -86,7 +86,7 @@ export class MenuComponent implements OnInit, OnDestroy {
         // So this switchMap is equivalent to a subscribe with a forEach inside
         switchMap((sections: MenuSection[]) => sections),
         switchMap((section: MenuSection) => this.getSectionComponent(section).pipe(
-          map((component:  GenericConstructor<MenuSectionComponent>) =>  ({ section, component }))
+          map((component: GenericConstructor<MenuSectionComponent>) =>  ({ section, component }))
         )),
         distinctUntilChanged((x,y) => x.section.id === y.section.id)
       ).subscribe(({ section, component}) => {