diff --git a/examples/sites/demos/apis/chart-attributes-demo.js b/examples/sites/demos/apis/chart-attributes-demo.js
index d08cc11717..43548094bc 100644
--- a/examples/sites/demos/apis/chart-attributes-demo.js
+++ b/examples/sites/demos/apis/chart-attributes-demo.js
@@ -276,8 +276,8 @@ export default {
         },
         {
           name: 'loading',
-          type: 'object',
-          defaultValue: '',
+          type: 'boolean',
+          defaultValue: 'false',
           desc: {
             'zh-CN': '图表加载状态',
             'en-US': 'Chart loading status'
@@ -287,8 +287,8 @@ export default {
         },
         {
           name: 'data-empty',
-          type: 'object',
-          defaultValue: '',
+          type: 'boolean',
+          defaultValue: 'false',
           desc: {
             'zh-CN': '暂无数据状态',
             'en-US': 'No data status available at the moment'
diff --git a/examples/sites/demos/apis/chart-demo.js b/examples/sites/demos/apis/chart-demo.js
index e60ee136b7..da6fa75738 100644
--- a/examples/sites/demos/apis/chart-demo.js
+++ b/examples/sites/demos/apis/chart-demo.js
@@ -276,8 +276,8 @@ export default {
         },
         {
           name: 'loading',
-          type: 'object',
-          defaultValue: '',
+          type: 'boolean',
+          defaultValue: 'false',
           desc: {
             'zh-CN': '图表加载状态',
             'en-US': 'Chart loading status'
@@ -287,8 +287,8 @@ export default {
         },
         {
           name: 'data-empty',
-          type: 'object',
-          defaultValue: '',
+          type: 'boolean',
+          defaultValue: 'false',
           desc: {
             'zh-CN': '暂无数据状态',
             'en-US': 'No data status available at the moment'
diff --git a/examples/sites/demos/apis/chart-docs.js b/examples/sites/demos/apis/chart-docs.js
index e60ee136b7..da6fa75738 100644
--- a/examples/sites/demos/apis/chart-docs.js
+++ b/examples/sites/demos/apis/chart-docs.js
@@ -276,8 +276,8 @@ export default {
         },
         {
           name: 'loading',
-          type: 'object',
-          defaultValue: '',
+          type: 'boolean',
+          defaultValue: 'false',
           desc: {
             'zh-CN': '图表加载状态',
             'en-US': 'Chart loading status'
@@ -287,8 +287,8 @@ export default {
         },
         {
           name: 'data-empty',
-          type: 'object',
-          defaultValue: '',
+          type: 'boolean',
+          defaultValue: 'false',
           desc: {
             'zh-CN': '暂无数据状态',
             'en-US': 'No data status available at the moment'
diff --git a/examples/sites/demos/apis/chart-events.js b/examples/sites/demos/apis/chart-events.js
index e60ee136b7..da6fa75738 100644
--- a/examples/sites/demos/apis/chart-events.js
+++ b/examples/sites/demos/apis/chart-events.js
@@ -276,8 +276,8 @@ export default {
         },
         {
           name: 'loading',
-          type: 'object',
-          defaultValue: '',
+          type: 'boolean',
+          defaultValue: 'false',
           desc: {
             'zh-CN': '图表加载状态',
             'en-US': 'Chart loading status'
@@ -287,8 +287,8 @@ export default {
         },
         {
           name: 'data-empty',
-          type: 'object',
-          defaultValue: '',
+          type: 'boolean',
+          defaultValue: 'false',
           desc: {
             'zh-CN': '暂无数据状态',
             'en-US': 'No data status available at the moment'
diff --git a/examples/sites/demos/apis/chart-question.js b/examples/sites/demos/apis/chart-question.js
index e60ee136b7..da6fa75738 100644
--- a/examples/sites/demos/apis/chart-question.js
+++ b/examples/sites/demos/apis/chart-question.js
@@ -276,8 +276,8 @@ export default {
         },
         {
           name: 'loading',
-          type: 'object',
-          defaultValue: '',
+          type: 'boolean',
+          defaultValue: 'false',
           desc: {
             'zh-CN': '图表加载状态',
             'en-US': 'Chart loading status'
@@ -287,8 +287,8 @@ export default {
         },
         {
           name: 'data-empty',
-          type: 'object',
-          defaultValue: '',
+          type: 'boolean',
+          defaultValue: 'false',
           desc: {
             'zh-CN': '暂无数据状态',
             'en-US': 'No data status available at the moment'
diff --git a/examples/sites/demos/apis/chart.js b/examples/sites/demos/apis/chart.js
index 01d253e757..8ac692d261 100644
--- a/examples/sites/demos/apis/chart.js
+++ b/examples/sites/demos/apis/chart.js
@@ -276,8 +276,8 @@ export default {
         },
         {
           name: 'loading',
-          type: 'object',
-          defaultValue: '',
+          type: 'boolean',
+          defaultValue: 'false',
           desc: {
             'zh-CN': '图表加载状态',
             'en-US': 'Chart loading status'
@@ -287,8 +287,8 @@ export default {
         },
         {
           name: 'data-empty',
-          type: 'object',
-          defaultValue: '',
+          type: 'boolean',
+          defaultValue: 'false',
           desc: {
             'zh-CN': '暂无数据状态',
             'en-US': 'No data status available at the moment'