diff --git a/ui/lib/js/utils.js b/ui/lib/js/utils.js
index 5a02df04..173cb5cb 100644
--- a/ui/lib/js/utils.js
+++ b/ui/lib/js/utils.js
@@ -48,7 +48,7 @@ const $arr2tree = (list, config = {}) => {
     if (!!pid && ids.indexOf(pid) > -1) {
       if (!itemMap[pid]) {
         itemMap[pid] = {
-          children: [],
+          children: []
         }
       }
       itemMap[pid].children.push(treeItem)
@@ -130,6 +130,7 @@ export const $copy = any => {
     return JSON.parse(JSON.stringify(any))
   } else return any
 }
+
 let debounceWait = null
 export const $debounce = (fn, wait) => {
   if (debounceWait !== null) clearTimeout(debounceWait);