fix eslint

app/assets/javascripts/boards/components/board_sidebar.js

@@ -3,6 +3,7 @@
 /* global MilestoneSelect */
 /* global LabelsSelect */
 /* global Sidebar */
+/* global Flash */
 
 import Vue from 'vue';
 import eventHub from '../../sidebar/event_hub';
@@ -85,10 +86,14 @@ require('./sidebar/remove_issue');
       saveAssignees () {
         this.loadingAssignees = true;
 
+        function setLoadingFalse() {
+          this.loadingAssignees = false;
+        }
+
         gl.issueBoards.BoardsStore.detail.issue.update(this.endpoint)
-          .then(() => this.loadingAssignees = false)
+          .then(setLoadingFalse)
           .catch(() => {
-            this.loadingAssignees = false;
+            setLoadingFalse();
             return new Flash('An error occurred while saving assignees');
           });
       },

app/assets/javascripts/sidebar/sidebar_mediator.js

@@ -19,7 +19,7 @@ export default class SidebarMediator {
   }
 
   saveAssignees(field) {
-    const selected = this.store.assignees.map((u) => u.id);
+    const selected = this.store.assignees.map(u => u.id);
 
     // If there are no ids, that means we have to unassign (which is id = 0)
     // And it only accepts an array, hence [0]

spec/javascripts/boards/issue_card_spec.js

@@ -177,7 +177,6 @@ describe('Issue card component', () => {
       expect(component.$el.querySelectorAll('.card-assignee .avatar').length).toEqual(4);
     });
 
-
     describe('more than four assignees', () => {
       beforeEach((done) => {
         component.issue.assignees.push(new ListAssignee({
@@ -199,7 +198,7 @@ describe('Issue card component', () => {
       });
 
       it('renders 99+ avatar counter', (done) => {
-        for(let i = 5; i < 104; i++) {
+        for (let i = 5; i < 104; i += 1) {
           const u = new ListAssignee({
             id: i,
             name: 'name',
@@ -215,7 +214,7 @@ describe('Issue card component', () => {
         });
       });
     });
-  })
+  });
 
   describe('labels', () => {
     it('does not render any', () => {