diff --git a/src/app/access-control/epeople-registry/eperson-form/validators/email-taken.validator.ts b/src/app/access-control/epeople-registry/eperson-form/validators/email-taken.validator.ts
index 5153abae7c..c3c5e60a0f 100644
--- a/src/app/access-control/epeople-registry/eperson-form/validators/email-taken.validator.ts
+++ b/src/app/access-control/epeople-registry/eperson-form/validators/email-taken.validator.ts
@@ -17,7 +17,7 @@ export class ValidateEmailNotTaken {
         .pipe(
           getFirstSucceededRemoteData(),
           map(res => {
-            return !!res.payload ? { emailTaken: true } : null;
+            return res.payload ? { emailTaken: true } : null;
           })
         );
     };
diff --git a/src/app/access-control/group-registry/group-form/group-form.component.ts b/src/app/access-control/group-registry/group-form/group-form.component.ts
index 3c0547cca5..4f85f13b1c 100644
--- a/src/app/access-control/group-registry/group-form/group-form.component.ts
+++ b/src/app/access-control/group-registry/group-form/group-form.component.ts
@@ -207,7 +207,7 @@ export class GroupFormComponent implements OnInit, OnDestroy {
       ];
       this.formGroup = this.formBuilderService.createFormGroup(this.formModel);
 
-      if (!!this.formGroup.controls.groupName) {
+      if (this.formGroup.controls.groupName) {
         this.formGroup.controls.groupName.setAsyncValidators(ValidateGroupExists.createValidator(this.groupDataService));
         this.groupNameValueChangeSubscribe = this.groupName.valueChanges.pipe(debounceTime(300)).subscribe(() => {
           this.changeDetectorRef.detectChanges();
diff --git a/src/app/info/feedback/feedback-form/feedback-form.component.ts b/src/app/info/feedback/feedback-form/feedback-form.component.ts
index 684f974701..2f7d3879dd 100644
--- a/src/app/info/feedback/feedback-form/feedback-form.component.ts
+++ b/src/app/info/feedback/feedback-form/feedback-form.component.ts
@@ -51,7 +51,7 @@ export class FeedbackFormComponent implements OnInit {
   ngOnInit() {
 
     this.authService.getAuthenticatedUserFromStore().pipe(take(1)).subscribe((user: EPerson) => {
-      if (!!user) {
+      if (user) {
         this.feedbackForm.patchValue({ email: user.email });
       }
     });
diff --git a/src/app/shared/form/builder/ds-dynamic-form-ui/relation-lookup-modal/dynamic-lookup-relation-modal.component.ts b/src/app/shared/form/builder/ds-dynamic-form-ui/relation-lookup-modal/dynamic-lookup-relation-modal.component.ts
index 446497a74f..ab58884bfb 100644
--- a/src/app/shared/form/builder/ds-dynamic-form-ui/relation-lookup-modal/dynamic-lookup-relation-modal.component.ts
+++ b/src/app/shared/form/builder/ds-dynamic-form-ui/relation-lookup-modal/dynamic-lookup-relation-modal.component.ts
@@ -170,7 +170,7 @@ export class DsDynamicLookupRelationModalComponent implements OnInit, OnDestroy
   }
 
   ngOnInit(): void {
-    if (!!this.currentItemIsLeftItem$) {
+    if (this.currentItemIsLeftItem$) {
       this.currentItemIsLeftItem$.subscribe((isLeft) => {
         this.isLeft = isLeft;
       });
diff --git a/src/app/shared/form/form.component.ts b/src/app/shared/form/form.component.ts
index 79cf8ad2c7..21887f5fca 100644
--- a/src/app/shared/form/form.component.ts
+++ b/src/app/shared/form/form.component.ts
@@ -123,7 +123,7 @@ export class FormComponent implements OnDestroy, OnInit {
   }*/
 
   private getFormGroup(): UntypedFormGroup {
-    if (!!this.parentFormModel) {
+    if (this.parentFormModel) {
       return this.formGroup.parent as UntypedFormGroup;
     }
 
@@ -183,7 +183,7 @@ export class FormComponent implements OnDestroy, OnInit {
               const { fieldId } = error;
               const { fieldIndex } = error;
               let field: AbstractControl;
-              if (!!this.parentFormModel) {
+              if (this.parentFormModel) {
                 field = this.formBuilderService.getFormControlById(fieldId, formGroup.parent as UntypedFormGroup, formModel, fieldIndex);
               } else {
                 field = this.formBuilderService.getFormControlById(fieldId, formGroup, formModel, fieldIndex);
@@ -206,7 +206,7 @@ export class FormComponent implements OnDestroy, OnInit {
               const { fieldId } = error;
               const { fieldIndex } = error;
               let field: AbstractControl;
-              if (!!this.parentFormModel) {
+              if (this.parentFormModel) {
                 field = this.formBuilderService.getFormControlById(fieldId, formGroup.parent as UntypedFormGroup, formModel, fieldIndex);
               } else {
                 field = this.formBuilderService.getFormControlById(fieldId, formGroup, formModel, fieldIndex);
diff --git a/src/app/shared/object-list/browse-entry-list-element/browse-entry-list-element.component.ts b/src/app/shared/object-list/browse-entry-list-element/browse-entry-list-element.component.ts
index e67dd4489e..ff3fdace20 100644
--- a/src/app/shared/object-list/browse-entry-list-element/browse-entry-list-element.component.ts
+++ b/src/app/shared/object-list/browse-entry-list-element/browse-entry-list-element.component.ts
@@ -49,7 +49,7 @@ export class BrowseEntryListElementComponent extends AbstractListableElementComp
       map((currentPage) => {
         return {
           value: this.object.value,
-          authority: !!this.object.authority ? this.object.authority : undefined,
+          authority: this.object.authority ? this.object.authority : undefined,
           startsWith: undefined,
           [pageParamName]: null,
           [BBM_PAGINATION_ID + '.return']: currentPage
diff --git a/src/app/submission/sections/cc-license/submission-section-cc-licenses.component.ts b/src/app/submission/sections/cc-license/submission-section-cc-licenses.component.ts
index c8cd898f96..ec28530f89 100644
--- a/src/app/submission/sections/cc-license/submission-section-cc-licenses.component.ts
+++ b/src/app/submission/sections/cc-license/submission-section-cc-licenses.component.ts
@@ -188,7 +188,7 @@ export class SubmissionSectionCcLicensesComponent extends SectionModelComponent
    */
   getCcLicenseLink$(): Observable<string> {
 
-    if (!!this.storedCcLicenseLink) {
+    if (this.storedCcLicenseLink) {
       return observableOf(this.storedCcLicenseLink);
     }
     if (!this.getSelectedCcLicense() || this.getSelectedCcLicense().fields.some(
@@ -257,7 +257,7 @@ export class SubmissionSectionCcLicensesComponent extends SectionModelComponent
             ).subscribe((link) => {
               this.operationsBuilder.add(path, link.toString(), false, true);
             });
-          } else if (!!this.data.uri) {
+          } else if (this.data.uri) {
             this.operationsBuilder.remove(path);
           }
         }