diff --git a/src/coord/axisModelCommonMixin.ts b/src/coord/axisModelCommonMixin.ts
index 45506188f2..2c3bbc582e 100644
--- a/src/coord/axisModelCommonMixin.ts
+++ b/src/coord/axisModelCommonMixin.ts
@@ -27,6 +27,7 @@ interface AxisModelCommonMixin<Opt extends AxisBaseOption> extends Pick<Model<Op
     axis: Axis;
 }
 
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
 class AxisModelCommonMixin<Opt extends AxisBaseOption> {
 
     getNeedCrossZero(): boolean {
diff --git a/src/data/Graph.ts b/src/data/Graph.ts
index 4605ff1593..6ebb2caa7b 100644
--- a/src/data/Graph.ts
+++ b/src/data/Graph.ts
@@ -412,6 +412,7 @@ class GraphEdge {
 
     getModel<T = unknown>(): Model<T>
     getModel<T = unknown, S extends keyof T= keyof T>(path: S): Model<T[S]>
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
     getModel<T = unknown>(path?: string): Model {
         if (this.dataIndex < 0) {
             return;
diff --git a/src/data/Tree.ts b/src/data/Tree.ts
index 0389f6a9bf..3b5d4a7573 100644
--- a/src/data/Tree.ts
+++ b/src/data/Tree.ts
@@ -228,6 +228,7 @@ export class TreeNode {
     getModel<T = unknown>(): Model<T>
     // @depcrecated
     // getModel<T = unknown, S extends keyof T = keyof T>(path: S): Model<T[S]>
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
     getModel<T = unknown>(path?: string): Model {
         if (this.dataIndex < 0) {
             return;
@@ -412,7 +413,7 @@ class Tree<HostModel extends Model = Model, LevelOption = any> {
      *     ]
      * }
      */
-    static createTree<T extends TreeNodeOption, HostModel extends Model, LevelOption>(
+    static createTree<T extends TreeNodeOption, HostModel extends Model>(
         dataRoot: T,
         hostModel: HostModel,
         beforeLink?: (data: SeriesData) => void
diff --git a/src/label/labelStyle.ts b/src/label/labelStyle.ts
index 606aa948f1..e63a35117e 100644
--- a/src/label/labelStyle.ts
+++ b/src/label/labelStyle.ts
@@ -30,8 +30,7 @@ import {
     ColorString,
     ZRStyleProps,
     AnimationOptionMixin,
-    InterpolatableValue,
-    SeriesDataType
+    InterpolatableValue
 } from '../util/types';
 import GlobalModel from '../model/Global';
 import { isFunction, retrieve2, extend, keys, trim } from 'zrender/src/core/util';
@@ -40,7 +39,6 @@ import { deprecateReplaceLog } from '../util/log';
 import { makeInner, interpolateRawValues } from '../util/model';
 import SeriesData from '../data/SeriesData';
 import { initProps, updateProps } from '../util/graphic';
-import { getECData } from '../util/innerStore';
 
 type TextCommonParams = {
     /**
diff --git a/src/layout/points.ts b/src/layout/points.ts
index bde24f1535..0b060403c0 100644
--- a/src/layout/points.ts
+++ b/src/layout/points.ts
@@ -17,7 +17,6 @@
 * under the License.
 */
 
-/* global Float32Array */
 
 import {map} from 'zrender/src/core/util';
 import createRenderPlanner from '../chart/helper/createRenderPlanner';
diff --git a/src/model/Model.ts b/src/model/Model.ts
index 559c3e96d7..160c8255f1 100644
--- a/src/model/Model.ts
+++ b/src/model/Model.ts
@@ -36,12 +36,13 @@ import { mixin, clone, merge } from 'zrender/src/core/util';
 
 // Since model.option can be not only `Dictionary` but also primary types,
 // we do this conditional type to avoid getting type 'never';
-type Key<Opt> = Opt extends Dictionary<any>
-    ? keyof Opt : string;
-type Value<Opt, R> = Opt extends Dictionary<any>
-    ? (R extends keyof Opt ? Opt[R] : ModelOption)
-    : ModelOption;
+// type Key<Opt> = Opt extends Dictionary<any>
+//     ? keyof Opt : string;
+// type Value<Opt, R> = Opt extends Dictionary<any>
+//     ? (R extends keyof Opt ? Opt[R] : ModelOption)
+//     : ModelOption;
 
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
 interface Model<Opt = ModelOption>
     extends LineStyleMixin, ItemStyleMixin, TextStyleMixin, AreaStyleMixin {}
 class Model<Opt = ModelOption> {    // TODO: TYPE use unkown insteadof any?
diff --git a/src/util/conditionalExpression.ts b/src/util/conditionalExpression.ts
index 2d9b752989..5107ac567a 100644
--- a/src/util/conditionalExpression.ts
+++ b/src/util/conditionalExpression.ts
@@ -167,7 +167,7 @@ interface RelationalExpressionOption extends
     parser?: RawValueParserType;
 }
 
-type RelationalExpressionOpEvaluate = (tarVal: unknown, condVal: unknown) => boolean;
+// type RelationalExpressionOpEvaluate = (tarVal: unknown, condVal: unknown) => boolean;
 
 
 class RegExpEvaluator implements FilterComparator {
diff --git a/src/visual/style.ts b/src/visual/style.ts
index 8683a21484..e791189423 100644
--- a/src/visual/style.ts
+++ b/src/visual/style.ts
@@ -18,7 +18,7 @@
 */
 
 import { isFunction, extend, createHashMap } from 'zrender/src/core/util';
-import { StageHandler, CallbackDataParams, ZRColor, Dictionary, InnerDecalObject, SeriesOption }
+import { StageHandler, CallbackDataParams, ZRColor, Dictionary, InnerDecalObject }
     from '../util/types';
 import makeStyleMapper from '../model/mixin/makeStyleMapper';
 import { ITEM_STYLE_KEY_MAP } from '../model/mixin/itemStyle';