require jQuery to be explicitly imported

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

 /* eslint-disable comma-dangle, space-before-function-paren, no-alert */
+import $ from 'jquery';
 import Vue from 'vue';
 window.gl = window.gl || {};

app/assets/javascripts/boards/components/board_new_issue.vue

 <script>
+import $ from 'jquery';
 import eventHub from '../eventhub';
 import ProjectSelect from './project_select.vue';
 import ListIssue from '../models/issue';

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

 /* eslint-disable comma-dangle, space-before-function-paren, no-new */
+import $ from 'jquery';
 import Vue from 'vue';
 import Flash from '../../flash';
 import { __ } from '../../locale';

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

+import $ from 'jquery';
 import Vue from 'vue';
 import userAvatarLink from '../../vue_shared/components/user_avatar/user_avatar_link.vue';
 import eventHub from '../eventhub';

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

-/* eslint-disable func-names, no-new, space-before-function-paren, one-var,
-   promise/catch-or-return */
+/* eslint-disable func-names, no-new, space-before-function-paren, one-var, promise/catch-or-return, max-len */
+
+import $ from 'jquery';
 import axios from '~/lib/utils/axios_utils';
 import _ from 'underscore';
 import CreateLabelDropdown from '../../create_label';

app/assets/javascripts/boards/components/project_select.vue

 <script>
   /* global ListIssue */
+
+  import $ from 'jquery';
   import _ from 'underscore';
   import eventHub from '../eventhub';
   import loadingIcon from '../../vue_shared/components/loading_icon.vue';

app/assets/javascripts/boards/index.js

 /* eslint-disable one-var, quote-props, comma-dangle, space-before-function-paren */
+import $ from 'jquery';
 import _ from 'underscore';
 import Vue from 'vue';

app/assets/javascripts/boards/mixins/sortable_default_options.js

 /* eslint-disable no-unused-vars, no-mixed-operators, comma-dangle */
 /* global DocumentTouch */
+import $ from 'jquery';
 import sortableConfig from '../../sortable/sortable_config';
 window.gl = window.gl || {};

app/assets/javascripts/boards/stores/boards_store.js

 /* eslint-disable comma-dangle, space-before-function-paren, one-var, no-shadow, dot-notation, max-len */
 /* global List */
+
+import $ from 'jquery';
 import _ from 'underscore';
 import Cookies from 'js-cookie';
 import { getUrlParamsArray } from '~/lib/utils/common_utils';

app/assets/javascripts/branches/branches_delete_modal.js

+import $ from 'jquery';
+
 const MODAL_SELECTOR = '#modal-delete-branch';
 class DeleteModal {

app/assets/javascripts/breadcrumb.js

+import $ from 'jquery';
+
 export const addTooltipToEl = (el) => {
   const textEl = el.querySelector('.js-breadcrumb-item-text');

app/assets/javascripts/build_artifacts.js

 /* eslint-disable func-names, prefer-arrow-callback, no-return-assign */
+
+import $ from 'jquery';
 import { visitUrl } from './lib/utils/url_utility';
 import { convertPermissionToBoolean } from './lib/utils/common_utils';

app/assets/javascripts/build_variables.js

-/* eslint-disable func-names*/
+import $ from 'jquery';
 export default function handleRevealVariables() {
   $('.js-reveal-variables')
     .off('click')
-    .on('click', function () {
+    .on('click', function click() {
       $('.js-build-variables').toggle();
       $(this).hide();
     });

app/assets/javascripts/ci_variable_list/native_form_variable_list.js

+import $ from 'jquery';
 import VariableList from './ci_variable_list';
 // Used for the variable list on scheduled pipeline edit page

app/assets/javascripts/commit/image_file.js

 /* eslint-disable func-names, space-before-function-paren, wrap-iife, no-var, no-use-before-define, prefer-arrow-callback, no-else-return, consistent-return, prefer-template, quotes, one-var, one-var-declaration-per-line, no-unused-vars, no-return-assign, comma-dangle, quote-props, no-unused-expressions, no-sequences, object-shorthand, max-len */
+import $ from 'jquery';
+
 // Width where images must fits in, for 2-up this gets divided by 2
 const availWidth = 900;
 const viewModes = ['two-up', 'swipe'];

app/assets/javascripts/commit_merge_requests.js

 /* global Flash */
+import $ from 'jquery';
 import axios from './lib/utils/axios_utils';
 import { n__, s__ } from './locale';

app/assets/javascripts/commits.js

+import $ from 'jquery';
 import { pluralize } from './lib/utils/text_utility';
 import { localTimeAgo } from './lib/utils/datetime_utility';
 import Pager from './pager';

app/assets/javascripts/compare.js

 /* eslint-disable func-names, space-before-function-paren, wrap-iife, quotes, no-var, object-shorthand, consistent-return, no-unused-vars, comma-dangle, vars-on-top, prefer-template, max-len */
+
+import $ from 'jquery';
 import { localTimeAgo } from './lib/utils/datetime_utility';
 import axios from './lib/utils/axios_utils';

app/assets/javascripts/compare_autocomplete.js

 /* eslint-disable func-names, space-before-function-paren, one-var, no-var, one-var-declaration-per-line, object-shorthand, comma-dangle, prefer-arrow-callback, no-else-return, newline-per-chained-call, wrap-iife, max-len */
+
+import $ from 'jquery';
 import { __ } from './locale';
 import axios from './lib/utils/axios_utils';
 import flash from './flash';

app/assets/javascripts/confirm_danger_modal.js

 /* eslint-disable func-names, space-before-function-paren, wrap-iife, one-var, no-var, camelcase, one-var-declaration-per-line, no-else-return, max-len */
+
+import $ from 'jquery';
 import { rstrip } from './lib/utils/common_utils';
 window.ConfirmDangerModal = (function() {