diff --git a/packages/devextreme/js/common/charts.d.ts b/packages/devextreme/js/common/charts.d.ts
index 96a6fb4a2d29..144dd365e348 100644
--- a/packages/devextreme/js/common/charts.d.ts
+++ b/packages/devextreme/js/common/charts.d.ts
@@ -476,7 +476,7 @@ export interface SeriesPoint {
        * @default 30
        * @propertyOf dxChartSeriesTypes.LineSeries,dxChartSeriesTypes.StackedLineSeries,dxChartSeriesTypes.FullStackedLineSeries,dxChartSeriesTypes.StackedSplineSeries,dxChartSeriesTypes.FullStackedSplineSeries,dxChartSeriesTypes.SplineSeries,dxChartSeriesTypes.StepLineSeries,dxChartSeriesTypes.AreaSeries,dxChartSeriesTypes.StackedAreaSeries,dxChartSeriesTypes.FullStackedAreaSeries,dxChartSeriesTypes.StackedSplineAreaSeries,dxChartSeriesTypes.FullStackedSplineAreaSeries,dxChartSeriesTypes.SplineAreaSeries,dxChartSeriesTypes.StepAreaSeries,dxChartSeriesTypes.RangeAreaSeries,dxChartSeriesTypes.ScatterSeries
        */
-      height?: number | undefined | {
+      height?: number | {
         /**
          * @docid dxChartSeriesTypes.CommonSeries.point.image.height.rangeMaxPoint
          * @default undefined
diff --git a/packages/devextreme/js/common/grids.d.ts b/packages/devextreme/js/common/grids.d.ts
index f131acd5ca95..ee1ae422450f 100644
--- a/packages/devextreme/js/common/grids.d.ts
+++ b/packages/devextreme/js/common/grids.d.ts
@@ -261,7 +261,7 @@ export interface ColumnBase<TRowData = any> {
    * @default undefined
    * @public
    */
-  filterOperations?: Array<FilterOperation | string> | undefined;
+  filterOperations?: Array<FilterOperation | string>;
   /**
    * @docid GridBaseColumn.filterType
    * @default "include"
@@ -281,7 +281,7 @@ export interface ColumnBase<TRowData = any> {
    * @fires GridBaseOptions.onOptionChanged
    * @public
    */
-  filterValues?: Array<any> | undefined;
+  filterValues?: Array<any>;
   /**
    * @docid GridBaseColumn.fixed
    * @default false
diff --git a/packages/devextreme/js/ui/chat.d.ts b/packages/devextreme/js/ui/chat.d.ts
index 88cb9a41ad0b..589514802055 100644
--- a/packages/devextreme/js/ui/chat.d.ts
+++ b/packages/devextreme/js/ui/chat.d.ts
@@ -206,7 +206,7 @@ export interface dxChatOptions extends WidgetOptions<dxChat> {
      * @default undefined
      * @public
      */
-    alerts?: Array<Alert> | undefined;
+    alerts?: Array<Alert>;
     /**
      * @docid
      * @default []
diff --git a/packages/devextreme/js/ui/diagram.d.ts b/packages/devextreme/js/ui/diagram.d.ts
index a8866160b3da..aa19468c161f 100644
--- a/packages/devextreme/js/ui/diagram.d.ts
+++ b/packages/devextreme/js/ui/diagram.d.ts
@@ -256,7 +256,7 @@ export interface dxDiagramOptions extends WidgetOptions<dxDiagram> {
        * @docid
        * @default undefined
        */
-      commands?: Array<CustomCommand | Command> | undefined;
+      commands?: Array<CustomCommand | Command>;
       /**
        * @docid
        * @default true
@@ -1004,7 +1004,7 @@ export interface dxDiagramOptions extends WidgetOptions<dxDiagram> {
        * @docid
        * @default undefined
        */
-      commands?: Array<CustomCommand | Command> | undefined;
+      commands?: Array<CustomCommand | Command>;
       /**
        * @docid
        * @default false
@@ -1021,7 +1021,7 @@ export interface dxDiagramOptions extends WidgetOptions<dxDiagram> {
        * @docid
        * @default undefined
        */
-      commands?: Array<CustomCommand | Command> | undefined;
+      commands?: Array<CustomCommand | Command>;
       /**
        * @docid
        * @default true
@@ -1038,7 +1038,7 @@ export interface dxDiagramOptions extends WidgetOptions<dxDiagram> {
        * @docid
        * @default undefined
        */
-      commands?: Array<CustomCommand | Command> | undefined;
+      commands?: Array<CustomCommand | Command>;
       /**
        * @docid
        * @default true
@@ -1076,7 +1076,7 @@ export interface dxDiagramOptions extends WidgetOptions<dxDiagram> {
          * @docid
          */
         title?: string;
-      }> | Array<ShapeCategory> | undefined;
+      }> | Array<ShapeCategory>;
       /**
        * @docid
        * @default 3
@@ -1120,7 +1120,7 @@ export interface dxDiagramOptions extends WidgetOptions<dxDiagram> {
        * @docid
        * @default undefined
        */
-      items?: Array<number> | undefined;
+      items?: Array<number>;
       /**
        * @docid
        * @default undefined
diff --git a/packages/devextreme/js/ui/drop_down_editor/ui.drop_down_editor.d.ts b/packages/devextreme/js/ui/drop_down_editor/ui.drop_down_editor.d.ts
index 8d9e52c65d4a..dd6084994fe5 100644
--- a/packages/devextreme/js/ui/drop_down_editor/ui.drop_down_editor.d.ts
+++ b/packages/devextreme/js/ui/drop_down_editor/ui.drop_down_editor.d.ts
@@ -74,7 +74,7 @@ export interface dxDropDownEditorOptions<TComponent> extends Omit<dxTextBoxOptio
      * @default undefined
      * @public
      */
-    buttons?: Array<DropDownPredefinedButton | TextEditorButton> | undefined;
+    buttons?: Array<DropDownPredefinedButton | TextEditorButton>;
     /**
      * @docid
      * @default true
diff --git a/packages/devextreme/js/ui/filter_builder.d.ts b/packages/devextreme/js/ui/filter_builder.d.ts
index eecbab0af99d..ae356c722c2d 100644
--- a/packages/devextreme/js/ui/filter_builder.d.ts
+++ b/packages/devextreme/js/ui/filter_builder.d.ts
@@ -487,7 +487,7 @@ export interface dxFilterBuilderField {
      * @default undefined
      * @public
      */
-    filterOperations?: Array<FilterBuilderOperation | string> | undefined;
+    filterOperations?: Array<FilterBuilderOperation | string>;
     /**
      * @docid
      * @default ""
diff --git a/packages/devextreme/js/ui/gantt.d.ts b/packages/devextreme/js/ui/gantt.d.ts
index b461be6f4fa1..0782fd0473f6 100644
--- a/packages/devextreme/js/ui/gantt.d.ts
+++ b/packages/devextreme/js/ui/gantt.d.ts
@@ -1045,7 +1045,7 @@ export interface dxGanttOptions extends WidgetOptions<dxGantt> {
      * @default undefined
      * @public
      */
-    stripLines?: Array<dxGanttStripLine> | undefined;
+    stripLines?: Array<dxGanttStripLine>;
     /**
      * @docid
      * @type_function_return string|Element|jQuery
diff --git a/packages/devextreme/js/ui/number_box.d.ts b/packages/devextreme/js/ui/number_box.d.ts
index 4dc1ba31921c..bc9fb5903a7b 100644
--- a/packages/devextreme/js/ui/number_box.d.ts
+++ b/packages/devextreme/js/ui/number_box.d.ts
@@ -160,7 +160,7 @@ export interface dxNumberBoxOptions extends dxTextEditorOptions<dxNumberBox> {
      * @default undefined
      * @public
      */
-    buttons?: Array<NumberBoxPredefinedButton | TextEditorButton> | undefined;
+    buttons?: Array<NumberBoxPredefinedButton | TextEditorButton>;
     /**
      * @docid
      * @default ""
diff --git a/packages/devextreme/js/viz/chart.d.ts b/packages/devextreme/js/viz/chart.d.ts
index fe6c80d6c9d8..ef1119c12aa4 100644
--- a/packages/devextreme/js/viz/chart.d.ts
+++ b/packages/devextreme/js/viz/chart.d.ts
@@ -1367,7 +1367,7 @@ export type ArgumentAxis = CommonAxisSettings & {
      * @notUsedInTheme
      * @public
      */
-    breaks?: Array<ScaleBreak> | undefined;
+    breaks?: Array<ScaleBreak>;
     /**
      * @docid dxChartOptions.argumentAxis.categories
      * @public
@@ -1399,7 +1399,7 @@ export type ArgumentAxis = CommonAxisSettings & {
      * @default undefined
      * @public
      */
-    holidays?: Array<Date | string> | Array<number> | undefined;
+    holidays?: Array<Date | string> | Array<number>;
     /**
      * @docid dxChartOptions.argumentAxis.hoverMode
      * @default 'none'
@@ -1475,7 +1475,7 @@ export type ArgumentAxis = CommonAxisSettings & {
      * @default undefined
      * @public
      */
-    singleWorkdays?: Array<Date | string> | Array<number> | undefined;
+    singleWorkdays?: Array<Date | string> | Array<number>;
     /**
      * @docid dxChartOptions.argumentAxis.strips
      * @type Array<Object>
@@ -2468,7 +2468,7 @@ export type ValueAxis = CommonAxisSettings & {
      * @notUsedInTheme
      * @public
      */
-    breaks?: Array<ScaleBreak> | undefined;
+    breaks?: Array<ScaleBreak>;
     /**
      * @docid dxChartOptions.valueAxis.categories
      * @public
diff --git a/packages/devextreme/js/viz/gauges/base_gauge.d.ts b/packages/devextreme/js/viz/gauges/base_gauge.d.ts
index 32c676cfd219..9c8db391b798 100644
--- a/packages/devextreme/js/viz/gauges/base_gauge.d.ts
+++ b/packages/devextreme/js/viz/gauges/base_gauge.d.ts
@@ -112,7 +112,7 @@ export interface BaseGaugeOptions<TComponent> extends BaseWidgetOptions<TCompone
      * @fires BaseWidgetOptions.onOptionChanged
      * @public
      */
-    subvalues?: Array<number> | undefined;
+    subvalues?: Array<number>;
     /**
      * @docid
      * @type object
@@ -234,14 +234,14 @@ export interface BaseGaugeScale {
      * @notUsedInTheme
      * @public
      */
-    customMinorTicks?: Array<number> | undefined;
+    customMinorTicks?: Array<number>;
     /**
      * @docid BaseGaugeOptions.scale.customTicks
      * @default undefined
      * @notUsedInTheme
      * @public
      */
-    customTicks?: Array<number> | undefined;
+    customTicks?: Array<number>;
     /**
      * @docid BaseGaugeOptions.scale.endValue
      * @default 100
diff --git a/packages/devextreme/js/viz/range_selector.d.ts b/packages/devextreme/js/viz/range_selector.d.ts
index 3c1ce23b73b5..ee84c775a622 100644
--- a/packages/devextreme/js/viz/range_selector.d.ts
+++ b/packages/devextreme/js/viz/range_selector.d.ts
@@ -459,7 +459,7 @@ export interface dxRangeSelectorOptions extends BaseWidgetOptions<dxRangeSelecto
        * @default undefined
        * @notUsedInTheme
        */
-      breaks?: Array<ScaleBreak> | undefined;
+      breaks?: Array<ScaleBreak>;
       /**
        * @docid
        */
@@ -479,7 +479,7 @@ export interface dxRangeSelectorOptions extends BaseWidgetOptions<dxRangeSelecto
        * @docid
        * @default undefined
        */
-      holidays?: Array<Date | string> | Array<number> | undefined;
+      holidays?: Array<Date | string> | Array<number>;
       /**
        * @docid
        */
@@ -633,7 +633,7 @@ export interface dxRangeSelectorOptions extends BaseWidgetOptions<dxRangeSelecto
        * @docid
        * @default undefined
        */
-      singleWorkdays?: Array<Date | string> | Array<number> | undefined;
+      singleWorkdays?: Array<Date | string> | Array<number>;
       /**
        * @docid
        * @default undefined
diff --git a/packages/devextreme/js/viz/tree_map.d.ts b/packages/devextreme/js/viz/tree_map.d.ts
index 337112ded5de..c412eb392cc1 100644
--- a/packages/devextreme/js/viz/tree_map.d.ts
+++ b/packages/devextreme/js/viz/tree_map.d.ts
@@ -231,7 +231,7 @@ export interface dxTreeMapOptions extends BaseWidgetOptions<dxTreeMap> {
        * @docid
        * @default undefined
        */
-      range?: Array<number> | undefined;
+      range?: Array<number>;
       /**
        * @docid
        * @default undefined
diff --git a/packages/devextreme/js/viz/vector_map.d.ts b/packages/devextreme/js/viz/vector_map.d.ts
index 3a4473c3685b..e6bc4a43adf4 100644
--- a/packages/devextreme/js/viz/vector_map.d.ts
+++ b/packages/devextreme/js/viz/vector_map.d.ts
@@ -362,7 +362,7 @@ export interface dxVectorMapOptions extends BaseWidgetOptions<dxVectorMap> {
      * @notUsedInTheme
      * @public
      */
-    bounds?: Array<number> | undefined;
+    bounds?: Array<number>;
     /**
      * @docid
      * @default [0, 0]
@@ -756,7 +756,7 @@ export interface dxVectorMapCommonAnnotationConfig extends BaseWidgetAnnotationC
      * @default undefined
      * @public
      */
-    coordinates?: Array<number> | undefined;
+    coordinates?: Array<number>;
     /**
      * @docid
      * @type_function_return object
diff --git a/packages/devextreme/ts/dx.all.d.ts b/packages/devextreme/ts/dx.all.d.ts
index 5ad5353e0eb6..f0091b90021a 100644
--- a/packages/devextreme/ts/dx.all.d.ts
+++ b/packages/devextreme/ts/dx.all.d.ts
@@ -2422,7 +2422,6 @@ declare module DevExpress.common.charts {
            */
           height?:
             | number
-            | undefined
             | {
                 /**
                  * [descr:dxChartSeriesTypes.CommonSeries.point.image.height.rangeMaxPoint]
@@ -2765,7 +2764,7 @@ declare module DevExpress.common.grids {
     /**
      * [descr:GridBaseColumn.filterOperations]
      */
-    filterOperations?: Array<FilterOperation | string> | undefined;
+    filterOperations?: Array<FilterOperation | string>;
     /**
      * [descr:GridBaseColumn.filterType]
      */
@@ -2777,7 +2776,7 @@ declare module DevExpress.common.grids {
     /**
      * [descr:GridBaseColumn.filterValues]
      */
-    filterValues?: Array<any> | undefined;
+    filterValues?: Array<any>;
     /**
      * [descr:GridBaseColumn.fixed]
      */
@@ -9594,7 +9593,7 @@ declare module DevExpress.ui {
     /**
      * [descr:dxChatOptions.alerts]
      */
-    alerts?: Array<DevExpress.ui.dxChat.Alert> | undefined;
+    alerts?: Array<DevExpress.ui.dxChat.Alert>;
     /**
      * [descr:dxChatOptions.typingUsers]
      */
@@ -13353,12 +13352,9 @@ declare module DevExpress.ui {
       /**
        * [descr:dxDiagramOptions.contextMenu.commands]
        */
-      commands?:
-        | Array<
-            | DevExpress.ui.dxDiagram.CustomCommand
-            | DevExpress.ui.dxDiagram.Command
-          >
-        | undefined;
+      commands?: Array<
+        DevExpress.ui.dxDiagram.CustomCommand | DevExpress.ui.dxDiagram.Command
+      >;
       /**
        * [descr:dxDiagramOptions.contextMenu.enabled]
        */
@@ -14008,12 +14004,9 @@ declare module DevExpress.ui {
       /**
        * [descr:dxDiagramOptions.mainToolbar.commands]
        */
-      commands?:
-        | Array<
-            | DevExpress.ui.dxDiagram.CustomCommand
-            | DevExpress.ui.dxDiagram.Command
-          >
-        | undefined;
+      commands?: Array<
+        DevExpress.ui.dxDiagram.CustomCommand | DevExpress.ui.dxDiagram.Command
+      >;
       /**
        * [descr:dxDiagramOptions.mainToolbar.visible]
        */
@@ -14026,12 +14019,9 @@ declare module DevExpress.ui {
       /**
        * [descr:dxDiagramOptions.historyToolbar.commands]
        */
-      commands?:
-        | Array<
-            | DevExpress.ui.dxDiagram.CustomCommand
-            | DevExpress.ui.dxDiagram.Command
-          >
-        | undefined;
+      commands?: Array<
+        DevExpress.ui.dxDiagram.CustomCommand | DevExpress.ui.dxDiagram.Command
+      >;
       /**
        * [descr:dxDiagramOptions.historyToolbar.visible]
        */
@@ -14044,12 +14034,9 @@ declare module DevExpress.ui {
       /**
        * [descr:dxDiagramOptions.viewToolbar.commands]
        */
-      commands?:
-        | Array<
-            | DevExpress.ui.dxDiagram.CustomCommand
-            | DevExpress.ui.dxDiagram.Command
-          >
-        | undefined;
+      commands?: Array<
+        DevExpress.ui.dxDiagram.CustomCommand | DevExpress.ui.dxDiagram.Command
+      >;
       /**
        * [descr:dxDiagramOptions.viewToolbar.visible]
        */
@@ -14085,8 +14072,7 @@ declare module DevExpress.ui {
              */
             title?: string;
           }>
-        | Array<DevExpress.ui.dxDiagram.ShapeCategory>
-        | undefined;
+        | Array<DevExpress.ui.dxDiagram.ShapeCategory>;
       /**
        * [descr:dxDiagramOptions.toolbox.shapeIconsPerRow]
        */
@@ -14121,7 +14107,7 @@ declare module DevExpress.ui {
           /**
            * [descr:dxDiagramOptions.zoomLevel.items]
            */
-          items?: Array<number> | undefined;
+          items?: Array<number>;
           /**
            * [descr:dxDiagramOptions.zoomLevel.value]
            */
@@ -14949,12 +14935,10 @@ declare module DevExpress.ui {
     /**
      * [descr:dxDropDownEditorOptions.buttons]
      */
-    buttons?:
-      | Array<
-          | DevExpress.ui.dxDropDownEditor.DropDownPredefinedButton
-          | DevExpress.common.TextEditorButton
-        >
-      | undefined;
+    buttons?: Array<
+      | DevExpress.ui.dxDropDownEditor.DropDownPredefinedButton
+      | DevExpress.common.TextEditorButton
+    >;
     /**
      * [descr:dxDropDownEditorOptions.deferRendering]
      */
@@ -16657,9 +16641,9 @@ declare module DevExpress.ui {
     /**
      * [descr:dxFilterBuilderField.filterOperations]
      */
-    filterOperations?:
-      | Array<DevExpress.ui.dxFilterBuilder.FilterBuilderOperation | string>
-      | undefined;
+    filterOperations?: Array<
+      DevExpress.ui.dxFilterBuilder.FilterBuilderOperation | string
+    >;
     /**
      * [descr:dxFilterBuilderField.format]
      */
@@ -18972,7 +18956,7 @@ declare module DevExpress.ui {
     /**
      * [descr:dxGanttOptions.stripLines]
      */
-    stripLines?: Array<dxGanttStripLine> | undefined;
+    stripLines?: Array<dxGanttStripLine>;
     /**
      * [descr:dxGanttOptions.taskTooltipContentTemplate]
      */
@@ -21640,12 +21624,10 @@ declare module DevExpress.ui {
     /**
      * [descr:dxNumberBoxOptions.buttons]
      */
-    buttons?:
-      | Array<
-          | DevExpress.ui.dxNumberBox.NumberBoxPredefinedButton
-          | DevExpress.common.TextEditorButton
-        >
-      | undefined;
+    buttons?: Array<
+      | DevExpress.ui.dxNumberBox.NumberBoxPredefinedButton
+      | DevExpress.common.TextEditorButton
+    >;
     /**
      * [descr:dxNumberBoxOptions.format]
      */
@@ -31602,7 +31584,7 @@ declare module DevExpress.viz {
     /**
      * [descr:BaseGaugeOptions.subvalues]
      */
-    subvalues?: Array<number> | undefined;
+    subvalues?: Array<number>;
     /**
      * [descr:BaseGaugeOptions.tooltip]
      */
@@ -31663,11 +31645,11 @@ declare module DevExpress.viz {
     /**
      * [descr:BaseGaugeOptions.scale.customMinorTicks]
      */
-    customMinorTicks?: Array<number> | undefined;
+    customMinorTicks?: Array<number>;
     /**
      * [descr:BaseGaugeOptions.scale.customTicks]
      */
-    customTicks?: Array<number> | undefined;
+    customTicks?: Array<number>;
     /**
      * [descr:BaseGaugeOptions.scale.endValue]
      */
@@ -33373,7 +33355,7 @@ declare module DevExpress.viz {
       /**
        * [descr:dxChartOptions.argumentAxis.breaks]
        */
-      breaks?: Array<DevExpress.common.charts.ScaleBreak> | undefined;
+      breaks?: Array<DevExpress.common.charts.ScaleBreak>;
       /**
        * [descr:dxChartOptions.argumentAxis.categories]
        */
@@ -33393,7 +33375,7 @@ declare module DevExpress.viz {
       /**
        * [descr:dxChartOptions.argumentAxis.holidays]
        */
-      holidays?: Array<Date | string> | Array<number> | undefined;
+      holidays?: Array<Date | string> | Array<number>;
       /**
        * [descr:dxChartOptions.argumentAxis.hoverMode]
        */
@@ -33441,7 +33423,7 @@ declare module DevExpress.viz {
       /**
        * [descr:dxChartOptions.argumentAxis.singleWorkdays]
        */
-      singleWorkdays?: Array<Date | string> | Array<number> | undefined;
+      singleWorkdays?: Array<Date | string> | Array<number>;
       /**
        * [descr:dxChartOptions.argumentAxis.strips]
        */
@@ -34340,7 +34322,7 @@ declare module DevExpress.viz {
       /**
        * [descr:dxChartOptions.valueAxis.breaks]
        */
-      breaks?: Array<DevExpress.common.charts.ScaleBreak> | undefined;
+      breaks?: Array<DevExpress.common.charts.ScaleBreak>;
       /**
        * [descr:dxChartOptions.valueAxis.categories]
        */
@@ -40303,7 +40285,7 @@ declare module DevExpress.viz {
       /**
        * [descr:dxRangeSelectorOptions.scale.breaks]
        */
-      breaks?: Array<DevExpress.common.charts.ScaleBreak> | undefined;
+      breaks?: Array<DevExpress.common.charts.ScaleBreak>;
       /**
        * [descr:dxRangeSelectorOptions.scale.categories]
        */
@@ -40319,7 +40301,7 @@ declare module DevExpress.viz {
       /**
        * [descr:dxRangeSelectorOptions.scale.holidays]
        */
-      holidays?: Array<Date | string> | Array<number> | undefined;
+      holidays?: Array<Date | string> | Array<number>;
       /**
        * [descr:dxRangeSelectorOptions.scale.label]
        */
@@ -40449,7 +40431,7 @@ declare module DevExpress.viz {
       /**
        * [descr:dxRangeSelectorOptions.scale.singleWorkdays]
        */
-      singleWorkdays?: Array<Date | string> | Array<number> | undefined;
+      singleWorkdays?: Array<Date | string> | Array<number>;
       /**
        * [descr:dxRangeSelectorOptions.scale.startValue]
        */
@@ -41602,7 +41584,7 @@ declare module DevExpress.viz {
       /**
        * [descr:dxTreeMapOptions.colorizer.range]
        */
-      range?: Array<number> | undefined;
+      range?: Array<number>;
       /**
        * [descr:dxTreeMapOptions.colorizer.type]
        */
@@ -42154,7 +42136,7 @@ declare module DevExpress.viz {
     /**
      * [descr:dxVectorMapCommonAnnotationConfig.coordinates]
      */
-    coordinates?: Array<number> | undefined;
+    coordinates?: Array<number>;
     /**
      * [descr:dxVectorMapCommonAnnotationConfig.customizeTooltip]
      */
@@ -42204,7 +42186,7 @@ declare module DevExpress.viz {
     /**
      * [descr:dxVectorMapOptions.bounds]
      */
-    bounds?: Array<number> | undefined;
+    bounds?: Array<number>;
     /**
      * [descr:dxVectorMapOptions.center]
      */