[Doc] hide some demo in weapp (#3232)

docs/src/WapApp.vue

@@ -17,7 +17,7 @@
       </a>
     </van-nav-bar>
     <keep-alive>
-      <router-view />
+      <router-view :weapp="weapp" />
     </keep-alive>
   </div>
 </template>
@@ -49,6 +49,10 @@ export default {
 
     showNav() {
       return getQueryString('hide_nav') !== '1';
+    },
+
+    weapp() {
+      return getQueryString('weapp') === '1';
     }
   },
 

docs/src/demo-common.js

@@ -85,6 +85,7 @@ export function wrapper(promise, name) {
     component = component.default;
     name = 'demo-' + name;
     component.name = name;
+
     const { i18n: config } = component;
     if (config) {
       const formattedI18n = {};
@@ -94,6 +95,10 @@ export function wrapper(promise, name) {
       });
       Locale.add(formattedI18n);
     }
+
+    component.props = component.props || {};
+    component.props.weapp = Boolean;
+
     return component;
   });
 }