diff --git a/src/chart/bar/BarView.ts b/src/chart/bar/BarView.ts
index 9fb9ce27962396269ad2c1787c30a8f6dbf5a714..191dc4758cebb62f38009d1a7c111c5f55ad3696 100644
--- a/src/chart/bar/BarView.ts
+++ b/src/chart/bar/BarView.ts
@@ -91,15 +91,15 @@ class BarView extends ChartView {
     static type = 'bar' as const;
     type = BarView.type;
 
-    _data: List;
+    private _data: List;
 
-    _isLargeDraw: boolean;
+    private _isLargeDraw: boolean;
 
-    _backgroundGroup: Group;
+    private _backgroundGroup: Group;
 
-    _backgroundEls: (Rect | Sector)[];
+    private _backgroundEls: (Rect | Sector)[];
 
-    render(seriesModel: BarSeriesModel, ecModel: GlobalModel, api: ExtensionAPI) {
+    render(seriesModel: BarSeriesModel, ecModel: GlobalModel, api: ExtensionAPI): void {
         this._updateDrawMode(seriesModel);
 
         const coordinateSystemType = seriesModel.get('coordinateSystem');
@@ -114,22 +114,19 @@ class BarView extends ChartView {
         else if (__DEV__) {
             console.warn('Only cartesian2d and polar supported for bar.');
         }
-
-        return this.group;
     }
 
-    incrementalPrepareRender(seriesModel: BarSeriesModel) {
+    incrementalPrepareRender(seriesModel: BarSeriesModel): void {
         this._clear();
         this._updateDrawMode(seriesModel);
     }
 
-    incrementalRender(
-        params: StageHandlerProgressParams, seriesModel: BarSeriesModel) {
+    incrementalRender(params: StageHandlerProgressParams, seriesModel: BarSeriesModel): void {
         // Do not support progressive in normal mode.
         this._incrementalRenderLarge(params, seriesModel);
     }
 
-    _updateDrawMode(seriesModel: BarSeriesModel) {
+    private _updateDrawMode(seriesModel: BarSeriesModel): void {
         const isLargeDraw = seriesModel.pipelineContext.large;
         if (this._isLargeDraw == null || isLargeDraw !== this._isLargeDraw) {
             this._isLargeDraw = isLargeDraw;
@@ -137,7 +134,7 @@ class BarView extends ChartView {
         }
     }
 
-    _renderNormal(seriesModel: BarSeriesModel, ecModel: GlobalModel, api: ExtensionAPI) {
+    private _renderNormal(seriesModel: BarSeriesModel, ecModel: GlobalModel, api: ExtensionAPI): void {
         const group = this.group;
         const data = seriesModel.getData();
         const oldData = this._data;
@@ -282,10 +279,9 @@ class BarView extends ChartView {
         this._data = data;
     }
 
-    _renderLarge(seriesModel: BarSeriesModel, ecModel: GlobalModel, api: ExtensionAPI) {
+    private _renderLarge(seriesModel: BarSeriesModel, ecModel: GlobalModel, api: ExtensionAPI): void {
         this._clear();
         createLarge(seriesModel, this.group);
-
         // Use clipPath in large mode.
         const clipPath = seriesModel.get('clip', true)
             ? createClipPath(seriesModel.coordinateSystem, false, seriesModel)
@@ -298,16 +294,16 @@ class BarView extends ChartView {
         }
     }
 
-    _incrementalRenderLarge(params: StageHandlerProgressParams, seriesModel: BarSeriesModel) {
+    private _incrementalRenderLarge(params: StageHandlerProgressParams, seriesModel: BarSeriesModel): void {
         this._removeBackground();
         createLarge(seriesModel, this.group, true);
     }
 
-    remove(ecModel?: GlobalModel) {
+    remove(ecModel?: GlobalModel): void {
         this._clear(ecModel);
     }
 
-    _clear(ecModel?: GlobalModel) {
+    private _clear(ecModel?: GlobalModel): void {
         const group = this.group;
         const data = this._data;
         if (ecModel && ecModel.get('animation') && data && !this._isLargeDraw) {
@@ -329,7 +325,7 @@ class BarView extends ChartView {
         this._data = null;
     }
 
-    _removeBackground() {
+    private _removeBackground(): void {
         this.group.remove(this._backgroundGroup);
         this._backgroundGroup = null;
     }
diff --git a/src/component/helper/MapDraw.ts b/src/component/helper/MapDraw.ts
index 791df3b879e0c8d68d326fdafc0e2764c587ec1c..02fc336c8d591f96b29a558c01dd52466bfd295a 100644
--- a/src/component/helper/MapDraw.ts
+++ b/src/component/helper/MapDraw.ts
@@ -356,7 +356,7 @@ class MapDraw {
     }
 
     private _updateController(
-        mapOrGeoModel: GeoModel | MapSeries, ecModel: GlobalModel, api: ExtensionAPI
+        this: MapDraw, mapOrGeoModel: GeoModel | MapSeries, ecModel: GlobalModel, api: ExtensionAPI
     ): void {
         const geo = mapOrGeoModel.coordinateSystem;
         const controller = this._controller;
@@ -380,8 +380,7 @@ class MapDraw {
             return action;
         }
 
-        // @ts-ignore FIXME:TS
-        controller.off('pan').on('pan', function (this: MapDraw, e) {
+        controller.off('pan').on('pan', function (e) {
             this._mouseDownFlag = false;
 
             roamHelper.updateViewOnPan(controllerHost, e.dx, e.dy);
@@ -392,8 +391,7 @@ class MapDraw {
             }));
         }, this);
 
-        // @ts-ignore FIXME:TS
-        controller.off('zoom').on('zoom', function (this: MapDraw, e) {
+        controller.off('zoom').on('zoom', function (e) {
             this._mouseDownFlag = false;
 
             roamHelper.updateViewOnZoom(controllerHost, e.scale, e.originX, e.originY);
@@ -415,7 +413,6 @@ class MapDraw {
             }
         }, this);
 
-        // @ts-ignore FIXME:TS
         controller.setPointerChecker(function (e, x, y) {
             return geo.getViewRectAfterRoam().contain(x, y)
                 && !onIrrelevantElement(e, api, mapOrGeoModel);