1 files changed, 6 insertions, 6 deletions
diff --git a/src/client/views/MainView.tsx b/src/client/views/MainView.tsx
index 10d423c05..be13b14f5 100644
--- a/src/client/views/MainView.tsx
+++ b/src/client/views/MainView.tsx
@@ -13,7 +13,7 @@ import { ClientUtils, lightOrDark, returnEmptyDoclist, returnEmptyFilter, return
 import { emptyFunction } from '../../Utils';
 import { Doc, DocListCast, Opt } from '../../fields/Doc';
 import { DocData } from '../../fields/DocSymbols';
-import { DocCast, StrCast } from '../../fields/Types';
+import { DocCast, StrCast, toList } from '../../fields/Types';
 import { DocServer } from '../DocServer';
 import { GoogleAuthenticationManager } from '../apis/GoogleAuthenticationManager';
 import { CollectionViewType, DocumentType } from '../documents/DocumentTypes';
@@ -627,8 +627,8 @@ export class MainView extends ObservableReactComponent<{}> {
     waitForDoubleClick = () => (SnappingManager.ExploreMode ? 'never' : undefined);
     headerBarScreenXf = () => new Transform(-this.leftScreenOffsetOfMainDocView - this.leftMenuFlyoutWidth(), -this.headerBarDocHeight(), 1);
     mainScreenToLocalXf = () => new Transform(-this.leftScreenOffsetOfMainDocView - this.leftMenuFlyoutWidth(), -this.topOfMainDocContent, 1);
-    addHeaderDoc = (docs: Doc | Doc[]) => (docs instanceof Doc ? [docs] : docs).reduce((done, doc) => Doc.AddDocToList(this.headerBarDoc, 'data', doc), true);
-    removeHeaderDoc = (docs: Doc | Doc[]) => (docs instanceof Doc ? [docs] : docs).reduce((done, doc) => Doc.RemoveDocFromList(this.headerBarDoc, 'data', doc), true);
+    addHeaderDoc = (docs: Doc | Doc[]) => toList(docs).reduce((done, doc) => Doc.AddDocToList(this.headerBarDoc, 'data', doc), true);
+    removeHeaderDoc = (docs: Doc | Doc[]) => toList(docs).reduce((done, doc) => Doc.RemoveDocFromList(this.headerBarDoc, 'data', doc), true);
     @computed get headerBarDocView() {
         return (
             <div className="mainView-headerBar" style={{ height: this.headerBarDocHeight() }}>
@@ -748,7 +748,7 @@ export class MainView extends ObservableReactComponent<{}> {
     sidebarScreenToLocal = () => new Transform(0, -this.topOfSidebarDoc, 1);
     mainContainerXf = () => this.sidebarScreenToLocal().translate(-this.leftScreenOffsetOfMainDocView, 0);
     static addDocTabFunc_impl = (docs: Doc | Doc[], location: OpenWhere): boolean => {
-        const doc = (docs instanceof Doc ? [docs] : docs).lastElement();
+        const doc = toList(docs).lastElement();
         const whereFields = location.split(':');
         const keyValue = whereFields.includes(OpenWhereMod.keyvalue);
         const whereMods = whereFields.length > 1 ? (whereFields[1] as OpenWhereMod) : OpenWhereMod.none;
@@ -920,9 +920,9 @@ export class MainView extends ObservableReactComponent<{}> {
         this._leftMenuFlyoutWidth = 0;
     });
 
-    remButtonDoc = (docs: Doc | Doc[]) => (docs instanceof Doc ? [docs] : docs).reduce((flg: boolean, doc) => flg && !doc.dragOnlyWithinContainer && Doc.RemoveDocFromList(Doc.MyDockedBtns, 'data', doc), true);
+    remButtonDoc = (docs: Doc | Doc[]) => toList(docs).reduce((flg: boolean, doc) => flg && !doc.dragOnlyWithinContainer && Doc.RemoveDocFromList(Doc.MyDockedBtns, 'data', doc), true);
     moveButtonDoc = (docs: Doc | Doc[], targetCol: Doc | undefined, addDocument: (document: Doc | Doc[]) => boolean) => this.remButtonDoc(docs) && addDocument(docs);
-    addButtonDoc = (docs: Doc | Doc[]) => (docs instanceof Doc ? [docs] : docs).reduce((flg: boolean, doc) => flg && Doc.AddDocToList(Doc.MyDockedBtns, 'data', doc), true);
+    addButtonDoc = (docs: Doc | Doc[]) => toList(docs).reduce((flg: boolean, doc) => flg && Doc.AddDocToList(Doc.MyDockedBtns, 'data', doc), true);
 
     buttonBarXf = () => {
         if (!this._docBtnRef.current) return Transform.Identity();