docs(@vant/use): fix demo (#7763)

2020-12-18 16:55:50 +08:00
parent 01ebe4f62f
commit e4297bcbb6
3 changed files with 5 additions and 2 deletions
@@ -8,6 +8,7 @@

 ```js
 // Parent.vue
+import { ref } from 'vue';
 import { useChildren } from '@vant/use';

 const RELATION_KEY = 'my-relation';
@@ -29,6 +30,8 @@ export default {
 // Child.vue
 import { useParent } from '@vant/use';

+const RELATION_KEY = 'my-relation';
+
 export default {
  setup() {
    const { parent } = useParent(RELATION_KEY);