diff --git a/packages/area/index.ts b/packages/area/index.ts
index c657961e..ea338929 100644
--- a/packages/area/index.ts
+++ b/packages/area/index.ts
@@ -27,8 +27,7 @@ VantComponent({
       observer: 'setValues',
     },
     columnsNum: {
-      type: Number,
-      optionalTypes: [String],
+      type: null,
       value: 3,
     },
     columnsPlaceholder: {
diff --git a/packages/checkbox/index.ts b/packages/checkbox/index.ts
index 10ed8e7f..e380c74e 100644
--- a/packages/checkbox/index.ts
+++ b/packages/checkbox/index.ts
@@ -31,8 +31,7 @@ VantComponent({
       value: 'round',
     },
     iconSize: {
-      type: Number,
-      optionalTypes: [String],
+      type: null,
       value: 20,
     },
   },
diff --git a/packages/circle/index.ts b/packages/circle/index.ts
index 53d27ab4..28d73067 100644
--- a/packages/circle/index.ts
+++ b/packages/circle/index.ts
@@ -41,8 +41,7 @@ VantComponent({
       value: WHITE,
     },
     color: {
-      type: String,
-      optionalTypes: [Object],
+      type: null,
       value: BLUE,
       observer() {
         this.setHoverColor().then(() => {
diff --git a/packages/grid/index.ts b/packages/grid/index.ts
index 39af3181..0fa96bcc 100644
--- a/packages/grid/index.ts
+++ b/packages/grid/index.ts
@@ -10,8 +10,7 @@ VantComponent({
       observer: 'updateChildren',
     },
     gutter: {
-      type: Number,
-      optionalTypes: [String],
+      type: null,
       value: 0,
       observer: 'updateChildren',
     },
diff --git a/packages/overlay/index.ts b/packages/overlay/index.ts
index eab4b8bd..0fdfa777 100644
--- a/packages/overlay/index.ts
+++ b/packages/overlay/index.ts
@@ -5,8 +5,7 @@ VantComponent({
     show: Boolean,
     customStyle: String,
     duration: {
-      type: Number,
-      optionalTypes: [String],
+      type: null,
       value: 300,
     },
     zIndex: {
diff --git a/packages/progress/index.ts b/packages/progress/index.ts
index e048a54d..becb6233 100644
--- a/packages/progress/index.ts
+++ b/packages/progress/index.ts
@@ -25,9 +25,8 @@ VantComponent({
       value: '#fff',
     },
     strokeWidth: {
-      type: Number,
+      type: null,
       value: 4,
-      optionalTypes: [String],
     },
   },
 
diff --git a/packages/radio/index.ts b/packages/radio/index.ts
index 4e8220f2..4f0ffc3e 100644
--- a/packages/radio/index.ts
+++ b/packages/radio/index.ts
@@ -27,8 +27,7 @@ VantComponent({
       value: 'round',
     },
     iconSize: {
-      type: Number,
-      optionalTypes: [String],
+      type: null,
       value: 20,
     },
   },
diff --git a/packages/share-sheet/index.ts b/packages/share-sheet/index.ts
index a9ffe2da..029d7246 100644
--- a/packages/share-sheet/index.ts
+++ b/packages/share-sheet/index.ts
@@ -34,8 +34,7 @@ VantComponent({
       value: true,
     },
     duration: {
-      type: Number,
-      optionalTypes: [String],
+      type: null,
       value: 300,
     },
   },
diff --git a/packages/skeleton/index.ts b/packages/skeleton/index.ts
index b9b2e8f4..a41e33e8 100644
--- a/packages/skeleton/index.ts
+++ b/packages/skeleton/index.ts
@@ -33,10 +33,9 @@ VantComponent({
       value: '40%',
     },
     rowWidth: {
-      type: String,
-      optionalTypes: [Array],
+      type: null,
       value: '100%',
-      observer(val: string | string[]) {
+      observer(val) {
         this.setData({ isArray: val instanceof Array });
       },
     },
diff --git a/packages/slider/index.ts b/packages/slider/index.ts
index 1b7367e1..1e0a02dd 100644
--- a/packages/slider/index.ts
+++ b/packages/slider/index.ts
@@ -27,9 +27,8 @@ VantComponent({
       value: 1,
     },
     value: {
-      type: Number,
+      type: null,
       value: 0,
-      optionalTypes: [Array],
       observer(val) {
         if (val !== this.value) {
           this.updateValue(val);
diff --git a/packages/swipe-cell/index.ts b/packages/swipe-cell/index.ts
index 258e1527..ae593c6c 100644
--- a/packages/swipe-cell/index.ts
+++ b/packages/swipe-cell/index.ts
@@ -28,8 +28,7 @@ VantComponent({
     },
     asyncClose: Boolean,
     name: {
-      type: String,
-      optionalTypes: [Number],
+      type: null,
       value: '',
     },
   },
diff --git a/packages/tabs/index.ts b/packages/tabs/index.ts
index 4ef9a1d0..3f932388 100644
--- a/packages/tabs/index.ts
+++ b/packages/tabs/index.ts
@@ -37,14 +37,12 @@ VantComponent({
       },
     },
     lineWidth: {
-      type: Number,
-      optionalTypes: [String],
+      type: null,
       value: 40,
       observer: 'resize',
     },
     lineHeight: {
-      type: Number,
-      optionalTypes: [String],
+      type: null,
       value: -1,
     },
     active: {
diff --git a/packages/tree-select/index.ts b/packages/tree-select/index.ts
index aca18cd1..ff46fdaa 100644
--- a/packages/tree-select/index.ts
+++ b/packages/tree-select/index.ts
@@ -22,8 +22,7 @@ VantComponent({
       observer: 'updateSubItems',
     },
     height: {
-      type: Number,
-      optionalTypes: [String],
+      type: null,
       value: 300,
     },
     max: {
diff --git a/packages/uploader/index.ts b/packages/uploader/index.ts
index 0f44bf25..0ab1c44f 100644
--- a/packages/uploader/index.ts
+++ b/packages/uploader/index.ts
@@ -12,13 +12,11 @@ VantComponent({
     afterRead: null,
     beforeRead: null,
     previewSize: {
-      type: Number,
-      optionalTypes: [String],
+      type: null,
       value: 80,
     },
     name: {
-      type: String,
-      optionalTypes: [Number],
+      type: null,
       value: '',
     },
     accept: {