fix eslint && refine code

src/store/modules/permission.js

@@ -1,5 +1,10 @@
 import { asyncRouterMap, constantRouterMap } from 'src/router';
 
+/**
+ * 通过meta.role判断是否与当前用户权限匹配
+ * @param roles
+ * @param route
+ */
 function hasPermission(roles, route) {
   if (route.meta && route.meta.role) {
     return roles.some(role => route.meta.role.indexOf(role) >= 0)
@@ -12,39 +17,35 @@ function hasPermission(roles, route) {
  * 递归过滤异步路由表，返回符合用户角色权限的路由表
  * @param asyncRouterMap
  * @param roles
- * @returns {Array.<T>|*}
  */
 function filterAsyncRouter(asyncRouterMap, roles) {
-    let accessedRouters = asyncRouterMap.filter(route => {
-        if(hasPermission(roles, route)) {
-            if(route.children && route.children.length) {
-                route.children = filterAsyncRouter(route.children, roles)
-            }
-            return true
-        }
-        return false
-    })
-    return accessedRouters
+  const accessedRouters = asyncRouterMap.filter(route => {
+    if (hasPermission(roles, route)) {
+      if (route.children && route.children.length) {
+        route.children = filterAsyncRouter(route.children, roles)
+      }
+      return true
+    }
+    return false
+  })
+  return accessedRouters
 }
 
-
 const permission = {
   state: {
     routers: constantRouterMap,
     addRouters: []
   },
-
   mutations: {
     SET_ROUTERS: (state, routers) => {
       state.addRouters = routers;
       state.routers = constantRouterMap.concat(routers);
     }
   },
-
   actions: {
     GenerateRoutes({ commit }, data) {
       return new Promise(resolve => {
-        const { roles } = data;
+        const { roles } = data
         let accessedRouters
         if (roles.indexOf('admin') >= 0) {
           accessedRouters = asyncRouterMap
@@ -58,5 +59,4 @@ const permission = {
   }
 };
 
-
 export default permission;