Update to jQuery 3.

56 files changed, 195 insertions, 195 deletions

diff --git a/app/assets/javascripts/awards_handler.js b/app/assets/javascripts/awards_handler.js
index 3283ce5ec36..9456edebccb 100644
--- a/app/assets/javascripts/awards_handler.js
+++ b/app/assets/javascripts/awards_handler.js
@@ -312,7 +312,7 @@ class AwardsHandler {
   }
 
   getAwardUrl() {
-    return this.getVotesBlock().data('award-url');
+    return this.getVotesBlock().data('awardUrl');
   }
 
   checkMutuality(votesBlock, emoji) {
diff --git a/app/assets/javascripts/behaviors/copy_to_clipboard.js b/app/assets/javascripts/behaviors/copy_to_clipboard.js
index cdea625fc8c..b669b63d23c 100644
--- a/app/assets/javascripts/behaviors/copy_to_clipboard.js
+++ b/app/assets/javascripts/behaviors/copy_to_clipboard.js
@@ -2,7 +2,7 @@ import Clipboard from 'clipboard';
 
 function showTooltip(target, title) {
   const $target = $(target);
-  const originalTitle = $target.data('original-title');
+  const originalTitle = $target.data('originalTitle');
 
   if (!$target.data('hideTooltip')) {
     $target
diff --git a/app/assets/javascripts/behaviors/quick_submit.js b/app/assets/javascripts/behaviors/quick_submit.js
index 2cf8f4fa935..312edc0cd69 100644
--- a/app/assets/javascripts/behaviors/quick_submit.js
+++ b/app/assets/javascripts/behaviors/quick_submit.js
@@ -43,7 +43,7 @@ $(document).on('keydown.quick_submit', '.js-quick-submit', (e) => {
   const $form = $(e.target).closest('form');
   const $submitButton = $form.find('input[type=submit], button[type=submit]').first();
 
-  if (!$submitButton.attr('disabled')) {
+  if (!$submitButton.prop('disabled')) {
     $submitButton.trigger('click', [e]);
 
     if (!isInIssuePage()) {
diff --git a/app/assets/javascripts/behaviors/requires_input.js b/app/assets/javascripts/behaviors/requires_input.js
index 035a7e5c431..e10cb2e3dc4 100644
--- a/app/assets/javascripts/behaviors/requires_input.js
+++ b/app/assets/javascripts/behaviors/requires_input.js
@@ -40,7 +40,7 @@ $.fn.requiresInput = function requiresInput() {
 // based on the option selected
 function hideOrShowHelpBlock(form) {
   const selected = $('.js-select-namespace option:selected');
-  if (selected.length && selected.data('options-parent') === 'groups') {
+  if (selected.length && selected.data('optionsParent') === 'groups') {
     form.find('.help-block').hide();
   } else if (selected.length) {
     form.find('.help-block').show();
diff --git a/app/assets/javascripts/blob_edit/blob_bundle.js b/app/assets/javascripts/blob_edit/blob_bundle.js
index 6b06344f5ba..116e85ffdf9 100644
--- a/app/assets/javascripts/blob_edit/blob_bundle.js
+++ b/app/assets/javascripts/blob_edit/blob_bundle.js
@@ -10,10 +10,10 @@ $(() => {
   const deleteBlobForm = $('.js-delete-blob-form');
 
   if (editBlobForm.length) {
-    const urlRoot = editBlobForm.data('relative-url-root');
-    const assetsPath = editBlobForm.data('assets-prefix');
-    const blobLanguage = editBlobForm.data('blob-language');
-    const currentAction = $('.js-file-title').data('current-action');
+    const urlRoot = editBlobForm.data('relativeUrlRoot');
+    const assetsPath = editBlobForm.data('assetsPrefix');
+    const blobLanguage = editBlobForm.data('blobLanguage');
+    const currentAction = $('.js-file-title').data('currentAction');
 
     new EditBlob(`${urlRoot}${assetsPath}`, blobLanguage, currentAction);
     new NewCommitForm(editBlobForm);
diff --git a/app/assets/javascripts/blob_edit/edit_blob.js b/app/assets/javascripts/blob_edit/edit_blob.js
index a25f7fb3dcd..d4f6adaccbc 100644
--- a/app/assets/javascripts/blob_edit/edit_blob.js
+++ b/app/assets/javascripts/blob_edit/edit_blob.js
@@ -59,7 +59,7 @@ export default class EditBlob {
 
     if (paneId === '#preview') {
       this.$toggleButton.hide();
-      axios.post(currentLink.data('preview-url'), {
+      axios.post(currentLink.data('previewUrl'), {
         content: this.editor.getValue(),
       })
       .then(({ data }) => {
diff --git a/app/assets/javascripts/boards/components/new_list_dropdown.js b/app/assets/javascripts/boards/components/new_list_dropdown.js
index cf0bb5f5376..362ef43e6f7 100644
--- a/app/assets/javascripts/boards/components/new_list_dropdown.js
+++ b/app/assets/javascripts/boards/components/new_list_dropdown.js
@@ -25,7 +25,7 @@ $(document).off('created.label').on('created.label', (e, label) => {
 gl.issueBoards.newListDropdownInit = () => {
   $('.js-new-board-list').each(function () {
     const $this = $(this);
-    new CreateLabelDropdown($this.closest('.dropdown').find('.dropdown-new-label'), $this.data('namespace-path'), $this.data('project-path'));
+    new CreateLabelDropdown($this.closest('.dropdown').find('.dropdown-new-label'), $this.data('namespacePath'), $this.data('projectPath'));
 
     $this.glDropdown({
       data(term, callback) {
diff --git a/app/assets/javascripts/commons/bootstrap.js b/app/assets/javascripts/commons/bootstrap.js
index c11b7d5f340..db96da4ccba 100644
--- a/app/assets/javascripts/commons/bootstrap.js
+++ b/app/assets/javascripts/commons/bootstrap.js
@@ -13,6 +13,6 @@ import 'bootstrap-sass/assets/javascripts/bootstrap/popover';
 
 // custom jQuery functions
 $.fn.extend({
-  disable() { return $(this).attr('disabled', 'disabled').addClass('disabled'); },
-  enable() { return $(this).removeAttr('disabled').removeClass('disabled'); },
+  disable() { return $(this).prop('disabled', true).addClass('disabled'); },
+  enable() { return $(this).prop('disabled', false).removeClass('disabled'); },
 });
diff --git a/app/assets/javascripts/compare.js b/app/assets/javascripts/compare.js
index e2a008e8904..d5a35ed81a6 100644
--- a/app/assets/javascripts/compare.js
+++ b/app/assets/javascripts/compare.js
@@ -13,7 +13,7 @@ export default class Compare {
         $dropdown = $(dropdown);
         return $dropdown.glDropdown({
           selectable: true,
-          fieldName: $dropdown.data('field-name'),
+          fieldName: $dropdown.data('fieldName'),
           filterable: true,
           id: function(obj, $el) {
             return $el.data('id');
diff --git a/app/assets/javascripts/compare_autocomplete.js b/app/assets/javascripts/compare_autocomplete.js
index 59899e97be1..fa341918fc1 100644
--- a/app/assets/javascripts/compare_autocomplete.js
+++ b/app/assets/javascripts/compare_autocomplete.js
@@ -9,7 +9,7 @@ export default function initCompareAutocomplete() {
     $dropdown = $(this);
     selected = $dropdown.data('selected');
     const $dropdownContainer = $dropdown.closest('.dropdown');
-    const $fieldInput = $(`input[name="${$dropdown.data('field-name')}"]`, $dropdownContainer);
+    const $fieldInput = $(`input[name="${$dropdown.data('fieldName')}"]`, $dropdownContainer);
     const $filterInput = $('input[type="search"]', $dropdownContainer);
     $dropdown.glDropdown({
       data: function(term, callback) {
@@ -25,7 +25,7 @@ export default function initCompareAutocomplete() {
       selectable: true,
       filterable: true,
       filterRemote: true,
-      fieldName: $dropdown.data('field-name'),
+      fieldName: $dropdown.data('fieldName'),
       filterInput: 'input[type="search"]',
       renderRow: function(ref) {
         var link;
diff --git a/app/assets/javascripts/diff.js b/app/assets/javascripts/diff.js
index 3ab8f3ab7ad..3df082e8c0c 100644
--- a/app/assets/javascripts/diff.js
+++ b/app/assets/javascripts/diff.js
@@ -68,7 +68,7 @@ export default class Diff {
     }
 
     const file = $target.parents('.diff-file');
-    const link = file.data('blob-diff-path');
+    const link = file.data('blobDiffPath');
     const view = file.data('view');
 
     const params = { since, to, bottom, offset, unfold, view };
@@ -121,7 +121,7 @@ export default class Diff {
   }
   // eslint-disable-next-line class-methods-use-this
   diffViewType() {
-    return $('.inline-parallel-buttons a.active').data('view-type');
+    return $('.inline-parallel-buttons a.active').data('viewType');
   }
   // eslint-disable-next-line class-methods-use-this
   lineNumbers(line) {
diff --git a/app/assets/javascripts/due_date_select.js b/app/assets/javascripts/due_date_select.js
index bd4c58b7cb1..417258e0092 100644
--- a/app/assets/javascripts/due_date_select.js
+++ b/app/assets/javascripts/due_date_select.js
@@ -17,9 +17,9 @@ class DueDateSelect {
     this.$value = $block.find('.value');
     this.$valueContent = $block.find('.value-content');
     this.$sidebarValue = $('.js-due-date-sidebar-value', $block);
-    this.fieldName = $dropdown.data('field-name');
-    this.abilityName = $dropdown.data('ability-name');
-    this.issueUpdateURL = $dropdown.data('issue-update');
+    this.fieldName = $dropdown.data('fieldName');
+    this.abilityName = $dropdown.data('abilityName');
+    this.issueUpdateURL = $dropdown.data('issueUpdate');
 
     this.rawSelectedDate = null;
     this.displayedDate = null;
diff --git a/app/assets/javascripts/files_comment_button.js b/app/assets/javascripts/files_comment_button.js
index 90020344748..6a4874e1ab8 100644
--- a/app/assets/javascripts/files_comment_button.js
+++ b/app/assets/javascripts/files_comment_button.js
@@ -25,7 +25,7 @@ export default {
 
     if (!this.userCanCreateNote) {
       // data-can-create-note is an empty string when true, otherwise undefined
-      this.userCanCreateNote = $diffFile.closest(DIFF_CONTAINER_SELECTOR).data('can-create-note') === '';
+      this.userCanCreateNote = $diffFile.closest(DIFF_CONTAINER_SELECTOR).data('canCreateNote') === '';
     }
 
     this.isParallelView = Cookies.get('diff_view') === 'parallel';
diff --git a/app/assets/javascripts/gl_dropdown.js b/app/assets/javascripts/gl_dropdown.js
index 15df7a7f989..e322756f256 100644
--- a/app/assets/javascripts/gl_dropdown.js
+++ b/app/assets/javascripts/gl_dropdown.js
@@ -485,7 +485,7 @@ GitLabDropdown = (function() {
       $target = $(e.target);
       if ($target && !$target.hasClass('dropdown-menu-close') &&
                      !$target.hasClass('dropdown-menu-close-icon') &&
-                     !$target.data('is-link')) {
+                     !$target.data('isLink')) {
         e.stopPropagation();
         return false;
       } else {
diff --git a/app/assets/javascripts/gl_form.js b/app/assets/javascripts/gl_form.js
index d200044b79f..2d40856e038 100644
--- a/app/assets/javascripts/gl_form.js
+++ b/app/assets/javascripts/gl_form.js
@@ -12,7 +12,7 @@ export default class GLForm {
     this.destroy();
     // Setup the form
     this.setupForm();
-    this.form.data('gl-form', this);
+    this.form.data('glForm', this);
   }
 
   destroy() {
@@ -21,7 +21,7 @@ export default class GLForm {
     if (this.autoComplete) {
       this.autoComplete.destroy();
     }
-    this.form.data('gl-form', null);
+    this.form.data('glForm', null);
   }
 
   setupForm() {
diff --git a/app/assets/javascripts/gpg_badges.js b/app/assets/javascripts/gpg_badges.js
index b33165f9402..6bf21f4f27d 100644
--- a/app/assets/javascripts/gpg_badges.js
+++ b/app/assets/javascripts/gpg_badges.js
@@ -11,7 +11,7 @@ export default class GpgBadges {
     badges.html('<i class="fa fa-spinner fa-spin"></i>');
 
     const params = parseQueryStringIntoObject(form.serialize());
-    return axios.get(form.data('signatures-path'), { params })
+    return axios.get(form.data('signaturesPath'), { params })
     .then(({ data }) => {
       data.signatures.forEach((signature) => {
         badges.filter(`[data-commit-sha="${signature.commit_sha}"]`).replaceWith(signature.html);
diff --git a/app/assets/javascripts/groups_select.js b/app/assets/javascripts/groups_select.js
index 65a2395fe29..12fc5f9b5c9 100644
--- a/app/assets/javascripts/groups_select.js
+++ b/app/assets/javascripts/groups_select.js
@@ -7,8 +7,8 @@ export default function groupsSelect() {
   window.GROUP_SELECT_PER_PAGE = 20;
   $('.ajax-groups-select').each(function setAjaxGroupsSelect2() {
     const $select = $(this);
-    const allAvailable = $select.data('all-available');
-    const skipGroups = $select.data('skip-groups') || [];
+    const allAvailable = $select.data('allAvailable');
+    const skipGroups = $select.data('skipGroups') || [];
     $select.select2({
       placeholder: 'Search for a group',
       multiple: $select.hasClass('multiselect'),
diff --git a/app/assets/javascripts/integrations/integration_settings_form.js b/app/assets/javascripts/integrations/integration_settings_form.js
index 3f27cfc2f6d..2848fe003cb 100644
--- a/app/assets/javascripts/integrations/integration_settings_form.js
+++ b/app/assets/javascripts/integrations/integration_settings_form.js
@@ -6,8 +6,8 @@ export default class IntegrationSettingsForm {
     this.$form = $(formSelector);
 
     // Form Metadata
-    this.canTestService = this.$form.data('can-test');
-    this.testEndPoint = this.$form.data('test-url');
+    this.canTestService = this.$form.data('canTest');
+    this.testEndPoint = this.$form.data('testUrl');
 
     // Form Child Elements
     this.$serviceToggle = this.$form.find('#service_active');
diff --git a/app/assets/javascripts/issue_show/components/description.vue b/app/assets/javascripts/issue_show/components/description.vue
index 9afa9dea126..1338be0ec4b 100644
--- a/app/assets/javascripts/issue_show/components/description.vue
+++ b/app/assets/javascripts/issue_show/components/description.vue
@@ -78,6 +78,7 @@
       taskListUpdateSuccess(data) {
         try {
           this.checkForSpam(data);
+          this.closeRecaptcha();
         } catch (error) {
           if (error && error.name === 'SpamError') this.openRecaptcha();
         }
diff --git a/app/assets/javascripts/issue_status_select.js b/app/assets/javascripts/issue_status_select.js
index 03546f61d1f..71c0f894389 100644
--- a/app/assets/javascripts/issue_status_select.js
+++ b/app/assets/javascripts/issue_status_select.js
@@ -1,6 +1,6 @@
 export default function issueStatusSelect() {
   $('.js-issue-status').each((i, el) => {
-    const fieldName = $(el).data('field-name');
+    const fieldName = $(el).data('fieldName');
     return $(el).glDropdown({
       selectable: true,
       fieldName,
diff --git a/app/assets/javascripts/labels_select.js b/app/assets/javascripts/labels_select.js
index 5ecf81ad11d..dc1930a997f 100644
--- a/app/assets/javascripts/labels_select.js
+++ b/app/assets/javascripts/labels_select.js
@@ -25,19 +25,19 @@ export default class LabelsSelect {
       $dropdown = $(dropdown);
       $dropdownContainer = $dropdown.closest('.labels-filter');
       $toggleText = $dropdown.find('.dropdown-toggle-text');
-      namespacePath = $dropdown.data('namespace-path');
-      projectPath = $dropdown.data('project-path');
+      namespacePath = $dropdown.data('namespacePath');
+      projectPath = $dropdown.data('projectPath');
       labelUrl = $dropdown.data('labels');
       issueUpdateURL = $dropdown.data('issueUpdate');
       selectedLabel = $dropdown.data('selected');
       if ((selectedLabel != null) && !$dropdown.hasClass('js-multiselect')) {
         selectedLabel = selectedLabel.split(',');
       }
-      showNo = $dropdown.data('show-no');
-      showAny = $dropdown.data('show-any');
+      showNo = $dropdown.data('showNo');
+      showAny = $dropdown.data('showAny');
       showMenuAbove = $dropdown.data('showMenuAbove');
-      defaultLabel = $dropdown.data('default-label');
-      abilityName = $dropdown.data('ability-name');
+      defaultLabel = $dropdown.data('defaultLabel');
+      abilityName = $dropdown.data('abilityName');
       $selectbox = $dropdown.closest('.selectbox');
       $block = $selectbox.closest('.block');
       $form = $dropdown.closest('form, .js-issuable-update');
@@ -45,11 +45,11 @@ export default class LabelsSelect {
       $sidebarLabelTooltip = $block.find('.js-sidebar-labels-tooltip');
       $value = $block.find('.value');
       $loading = $block.find('.block-loading').fadeOut();
-      fieldName = $dropdown.data('field-name');
+      fieldName = $dropdown.data('fieldName');
       useId = $dropdown.is('.js-issuable-form-dropdown, .js-filter-bulk-update, .js-label-sidebar-dropdown');
       propertyName = useId ? 'id' : 'title';
       initialSelected = $selectbox
-        .find('input[name="' + $dropdown.data('field-name') + '"]')
+        .find('input[name="' + $dropdown.data('fieldName') + '"]')
         .map(function () {
           return this.value;
         }).get();
@@ -268,7 +268,7 @@ export default class LabelsSelect {
             return defaultLabel;
           }
         },
-        fieldName: $dropdown.data('field-name'),
+        fieldName: $dropdown.data('fieldName'),
         id: function(label) {
           if (label.id <= 0) return label.title;
 
diff --git a/app/assets/javascripts/layout_nav.js b/app/assets/javascripts/layout_nav.js
index ab3cc29146a..1b4900827b8 100644
--- a/app/assets/javascripts/layout_nav.js
+++ b/app/assets/javascripts/layout_nav.js
@@ -4,7 +4,7 @@ import initFlyOutNav from './fly_out_nav';
 function hideEndFade($scrollingTabs) {
   $scrollingTabs.each(function scrollTabsLoop() {
     const $this = $(this);
-    $this.siblings('.fade-right').toggleClass('scrolling', $this.width() < $this.prop('scrollWidth'));
+    $this.siblings('.fade-right').toggleClass('scrolling', Math.round($this.width()) < $this.prop('scrollWidth'));
   });
 }
 
diff --git a/app/assets/javascripts/lib/utils/text_markdown.js b/app/assets/javascripts/lib/utils/text_markdown.js
index 2dc9cf0cc29..5dc98b4a920 100644
--- a/app/assets/javascripts/lib/utils/text_markdown.js
+++ b/app/assets/javascripts/lib/utils/text_markdown.js
@@ -138,7 +138,7 @@ textUtils.init = function(form) {
   return $('.js-md', form).off('click').on('click', function() {
     var $this;
     $this = $(this);
-    return self.updateText($this.closest('.md-area').find('textarea'), $this.data('md-tag'), $this.data('md-block'), !$this.data('md-prepend'));
+    return self.updateText($this.closest('.md-area').find('textarea'), $this.data('mdTag'), $this.data('mdBlock'), !$this.data('mdPrepend'));
   });
 };
 
diff --git a/app/assets/javascripts/line_highlighter.js b/app/assets/javascripts/line_highlighter.js
index fbd381d8ff7..e5c1fce3db9 100644
--- a/app/assets/javascripts/line_highlighter.js
+++ b/app/assets/javascripts/line_highlighter.js
@@ -83,7 +83,7 @@ LineHighlighter.prototype.clickHandler = function(event) {
   var current, lineNumber, range;
   event.preventDefault();
   this.clearHighlight();
-  lineNumber = $(event.target).closest('a').data('line-number');
+  lineNumber = $(event.target).closest('a').data('lineNumber');
   current = this.hashToRange(this._hash);
   if (!(current[0] && event.shiftKey)) {
     // If there's no current selection, or there is but Shift wasn't held,
diff --git a/app/assets/javascripts/main.js b/app/assets/javascripts/main.js
index b99cb257ce3..65e751dd460 100644
--- a/app/assets/javascripts/main.js
+++ b/app/assets/javascripts/main.js
@@ -220,7 +220,7 @@ $(() => {
   $document.on('click', '.js-confirm-danger', (e) => {
     const btn = $(e.target);
     const form = btn.closest('form');
-    const text = btn.data('confirm-danger-message');
+    const text = btn.data('confirmDangerMessage');
     e.preventDefault();
 
     // eslint-disable-next-line no-new
diff --git a/app/assets/javascripts/members.js b/app/assets/javascripts/members.js
index 52315e969d1..330ebed5f73 100644
--- a/app/assets/javascripts/members.js
+++ b/app/assets/javascripts/members.js
@@ -19,7 +19,7 @@ export default class Members {
         isSelectable(selected, $el) {
           return !$el.hasClass('is-active');
         },
-        fieldName: $btn.data('field-name'),
+        fieldName: $btn.data('fieldName'),
         id(selected, $el) {
           return $el.data('id');
         },
@@ -51,7 +51,7 @@ export default class Members {
   }
   // eslint-disable-next-line class-methods-use-this
   getMemberListItems($el) {
-    const $memberListItem = $el.is('.member') ? $el : $(`#${$el.data('el-id')}`);
+    const $memberListItem = $el.is('.member') ? $el : $(`#${$el.data('elId')}`);
 
     return {
       $memberListItem,
diff --git a/app/assets/javascripts/merge_request_tabs.js b/app/assets/javascripts/merge_request_tabs.js
index 3e97a8c758d..41971e92ec0 100644
--- a/app/assets/javascripts/merge_request_tabs.js
+++ b/app/assets/javascripts/merge_request_tabs.js
@@ -361,7 +361,7 @@ export default class MergeRequestTabs {
   }
 
   diffViewType() {
-    return $('.inline-parallel-buttons a.active').data('view-type');
+    return $('.inline-parallel-buttons a.active').data('viewType');
   }
 
   isDiffAction(action) {
diff --git a/app/assets/javascripts/milestone_select.js b/app/assets/javascripts/milestone_select.js
index 6581be606eb..2841ecb558b 100644
--- a/app/assets/javascripts/milestone_select.js
+++ b/app/assets/javascripts/milestone_select.js
@@ -24,19 +24,19 @@ export default class MilestoneSelect {
     $els.each((i, dropdown) => {
       let collapsedSidebarLabelTemplate, milestoneLinkNoneTemplate, milestoneLinkTemplate, selectedMilestone, selectedMilestoneDefault;
       const $dropdown = $(dropdown);
-      const projectId = $dropdown.data('project-id');
+      const projectId = $dropdown.data('projectId');
       const milestonesUrl = $dropdown.data('milestones');
       const issueUpdateURL = $dropdown.data('issueUpdate');
-      const showNo = $dropdown.data('show-no');
-      const showAny = $dropdown.data('show-any');
+      const showNo = $dropdown.data('showNo');
+      const showAny = $dropdown.data('showAny');
       const showMenuAbove = $dropdown.data('showMenuAbove');
-      const showUpcoming = $dropdown.data('show-upcoming');
-      const showStarted = $dropdown.data('show-started');
-      const useId = $dropdown.data('use-id');
-      const defaultLabel = $dropdown.data('default-label');
-      const defaultNo = $dropdown.data('default-no');
-      const issuableId = $dropdown.data('issuable-id');
-      const abilityName = $dropdown.data('ability-name');
+      const showUpcoming = $dropdown.data('showUpcoming');
+      const showStarted = $dropdown.data('showStarted');
+      const useId = $dropdown.data('useId');
+      const defaultLabel = $dropdown.data('defaultLabel');
+      const defaultNo = $dropdown.data('defaultNo');
+      const issuableId = $dropdown.data('issuableId');
+      const abilityName = $dropdown.data('abilityName');
       const $selectBox = $dropdown.closest('.selectbox');
       const $block = $selectBox.closest('.block');
       const $sidebarCollapsedValue = $block.find('.sidebar-collapsed-icon');
@@ -114,7 +114,7 @@ export default class MilestoneSelect {
           }
         },
         defaultLabel: defaultLabel,
-        fieldName: $dropdown.data('field-name'),
+        fieldName: $dropdown.data('fieldName'),
         text: milestone => _.escape(milestone.title),
         id: (milestone) => {
           if (!useId && !$dropdown.is('.js-issuable-form-dropdown')) {
@@ -166,7 +166,7 @@ export default class MilestoneSelect {
           }
 
           if (boardsStore) {
-            boardsStore[$dropdown.data('field-name')] = selected.name;
+            boardsStore[$dropdown.data('fieldName')] = selected.name;
             e.preventDefault();
           } else if ($dropdown.hasClass('js-filter-submit') && (isIssueIndex || isMRIndex)) {
             return Issuable.filterResults($dropdown.closest('form'));
diff --git a/app/assets/javascripts/notes.js b/app/assets/javascripts/notes.js
index 8efb8ac5320..f17b432cffd 100644
--- a/app/assets/javascripts/notes.js
+++ b/app/assets/javascripts/notes.js
@@ -219,7 +219,7 @@ export default class Notes {
         }
         editNote = $textarea.closest('.note');
         if (editNote.length) {
-          originalText = $textarea.closest('form').data('original-note');
+          originalText = $textarea.closest('form').data('originalNote');
           newText = $textarea.val();
           if (originalText !== newText) {
             if (!confirm('Are you sure you want to cancel editing this comment?')) {
@@ -609,9 +609,9 @@ export default class Notes {
    */
   addDiscussionNote($form, note, isNewDiffComment) {
     if ($form.attr('data-resolve-all') != null) {
-      var projectPath = $form.data('project-path');
-      var discussionId = $form.data('discussion-id');
-      var mergeRequestId = $form.data('noteable-iid');
+      var projectPath = $form.data('projectPath');
+      var discussionId = $form.data('discussionId');
+      var mergeRequestId = $form.data('noteableIid');
 
       if (ResolveService != null) {
         ResolveService.toggleResolveForDiscussion(mergeRequestId, discussionId);
@@ -751,7 +751,7 @@ export default class Notes {
     form.removeClass('current-note-edit-form');
     form.find('.js-finish-edit-warning').hide();
     // Replace markdown textarea text with original note text.
-    return form.find('.js-note-text').val(form.find('form.edit-note').data('original-note'));
+    return form.find('.js-note-text').val(form.find('form.edit-note').data('originalNote'));
   }
 
   /**
@@ -776,7 +776,7 @@ export default class Notes {
         var $note, $notes;
         $note = $(el);
         $notes = $note.closest('.discussion-notes');
-        const discussionId = $('.notes', $notes).data('discussion-id');
+        const discussionId = $('.notes', $notes).data('discussionId');
 
         if (typeof gl.diffNotesCompileComponents !== 'undefined') {
           if (gl.diffNoteApps[noteElId]) {
@@ -897,7 +897,7 @@ export default class Notes {
     // DiffNote
     form.find('#note_position').val(dataHolder.attr('data-position'));
 
-    form.find('.js-note-discard').show().removeClass('js-note-discard').addClass('js-close-discussion-note-form').text(form.find('.js-close-discussion-note-form').data('cancel-text'));
+    form.find('.js-note-discard').show().removeClass('js-note-discard').addClass('js-close-discussion-note-form').text(form.find('.js-close-discussion-note-form').data('cancelText'));
     form.find('.js-note-target-close').remove();
     form.find('.js-note-new-discussion').remove();
     this.setupNoteForm(form);
@@ -1037,7 +1037,7 @@ export default class Notes {
   removeDiscussionNoteForm(form) {
     var glForm, row;
     row = form.closest('tr');
-    glForm = form.data('gl-form');
+    glForm = form.data('glForm');
     glForm.destroy();
     form.find('.js-note-text').data('autosave').reset();
     // show the reply button (will only work for replies)
@@ -1122,8 +1122,8 @@ export default class Notes {
         return discardbtn.show();
       }
     } else {
-      reopentext = reopenbtn.data('original-text');
-      closetext = closebtn.data('original-text');
+      reopentext = reopenbtn.data('originalText');
+      closetext = closebtn.data('originalText');
       if (reopenbtn.text() !== reopentext) {
         reopenbtn.text(reopentext);
       }
@@ -1150,9 +1150,9 @@ export default class Notes {
 
     var $originalContentEl = $note.find('.original-note-content');
     var originalContent = $originalContentEl.text().trim();
-    var postUrl = $originalContentEl.data('post-url');
-    var targetId = $originalContentEl.data('target-id');
-    var targetType = $originalContentEl.data('target-type');
+    var postUrl = $originalContentEl.data('postUrl');
+    var targetId = $originalContentEl.data('targetId');
+    var targetType = $originalContentEl.data('targetType');
 
     this.glForm = new GLForm($editForm.find('form'), this.enableGFM);
 
@@ -1513,9 +1513,9 @@ export default class Notes {
           // If comment intends to resolve discussion, do the same.
           if (isDiscussionResolve) {
             $form
-              .attr('data-discussion-id', $submitBtn.data('discussion-id'))
+              .attr('data-discussion-id', $submitBtn.data('discussionId'))
               .attr('data-resolve-all', 'true')
-              .attr('data-project-path', $submitBtn.data('project-path'));
+              .attr('data-project-path', $submitBtn.data('projectPath'));
           }
 
           // Show final note element on UI
@@ -1587,7 +1587,7 @@ export default class Notes {
         this.addNoteError($form);
       });
 
-    return $closeBtn.text($closeBtn.data('original-text'));
+    return $closeBtn.text($closeBtn.data('originalText'));
   }
 
   /**
@@ -1642,7 +1642,7 @@ export default class Notes {
         this.updateNoteError();
       });
 
-    return $closeBtn.text($closeBtn.data('original-text'));
+    return $closeBtn.text($closeBtn.data('originalText'));
   }
 }
 
diff --git a/app/assets/javascripts/notifications_dropdown.js b/app/assets/javascripts/notifications_dropdown.js
index 9570d1c00aa..479a512ed65 100644
--- a/app/assets/javascripts/notifications_dropdown.js
+++ b/app/assets/javascripts/notifications_dropdown.js
@@ -3,11 +3,11 @@ import Flash from './flash';
 export default function notificationsDropdown() {
   $(document).on('click', '.update-notification', function updateNotificationCallback(e) {
     e.preventDefault();
-    if ($(this).is('.is-active') && $(this).data('notification-level') === 'custom') {
+    if ($(this).is('.is-active') && $(this).data('notificationLevel') === 'custom') {
       return;
     }
 
-    const notificationLevel = $(this).data('notification-level');
+    const notificationLevel = $(this).data('notificationLevel');
     const form = $(this).parents('.notification-form:first');
 
     form.find('.js-notification-loading').toggleClass('fa-bell fa-spin fa-spinner');
diff --git a/app/assets/javascripts/pager.js b/app/assets/javascripts/pager.js
index fd3105b1960..7e85bce0d73 100644
--- a/app/assets/javascripts/pager.js
+++ b/app/assets/javascripts/pager.js
@@ -56,7 +56,7 @@ export default {
   },
 
   initLoadMore() {
-    $(document).unbind('scroll');
+    $(document).off('scroll');
     $(document).endlessScroll({
       bottomPixels: ENDLESS_SCROLL_BOTTOM_PX,
       fireDelay: ENDLESS_SCROLL_FIRE_DELAY_MS,
diff --git a/app/assets/javascripts/pages/admin/abuse_reports/abuse_reports.js b/app/assets/javascripts/pages/admin/abuse_reports/abuse_reports.js
index d87e6304a24..66702ec4ca0 100644
--- a/app/assets/javascripts/pages/admin/abuse_reports/abuse_reports.js
+++ b/app/assets/javascripts/pages/admin/abuse_reports/abuse_reports.js
@@ -15,21 +15,21 @@ export default class AbuseReports {
     const $messageCellElement = $(this);
     const reportMessage = $messageCellElement.text();
     if (reportMessage.length > MAX_MESSAGE_LENGTH) {
-      $messageCellElement.data('original-message', reportMessage);
-      $messageCellElement.data('message-truncated', 'true');
+      $messageCellElement.data('originalMessage', reportMessage);
+      $messageCellElement.data('messageTruncated', 'true');
       $messageCellElement.text(truncate(reportMessage, MAX_MESSAGE_LENGTH));
     }
   }
 
   toggleMessageTruncation() {
     const $messageCellElement = $(this);
-    const originalMessage = $messageCellElement.data('original-message');
+    const originalMessage = $messageCellElement.data('originalMessage');
     if (!originalMessage) return;
-    if ($messageCellElement.data('message-truncated') === 'true') {
-      $messageCellElement.data('message-truncated', 'false');
+    if ($messageCellElement.data('messageTruncated') === 'true') {
+      $messageCellElement.data('messageTruncated', 'false');
       $messageCellElement.text(originalMessage);
     } else {
-      $messageCellElement.data('message-truncated', 'true');
+      $messageCellElement.data('messageTruncated', 'true');
       $messageCellElement.text(`${originalMessage.substr(0, (MAX_MESSAGE_LENGTH - 3))}...`);
     }
   }
diff --git a/app/assets/javascripts/pages/admin/admin.js b/app/assets/javascripts/pages/admin/admin.js
index 135c15c346b..45e05f111a7 100644
--- a/app/assets/javascripts/pages/admin/admin.js
+++ b/app/assets/javascripts/pages/admin/admin.js
@@ -16,9 +16,9 @@ export default function adminInit() {
   $('input#user_force_random_password').on('change', function randomPasswordClick() {
     const $elems = $('#user_password, #user_password_confirmation');
     if ($(this).attr('checked')) {
-      $elems.val('').attr('disabled', true);
+      $elems.val('').prop('disabled', true);
     } else {
-      $elems.removeAttr('disabled');
+      $elems.prop('disabled', false);
     }
   });
 
diff --git a/app/assets/javascripts/pages/admin/broadcast_messages/broadcast_message.js b/app/assets/javascripts/pages/admin/broadcast_messages/broadcast_message.js
index 885acfac6d0..b68ce5d32d8 100644
--- a/app/assets/javascripts/pages/admin/broadcast_messages/broadcast_message.js
+++ b/app/assets/javascripts/pages/admin/broadcast_messages/broadcast_message.js
@@ -14,7 +14,7 @@ export default function initBroadcastMessagesForm() {
     $('div.broadcast-message-preview').css('color', previewColor);
   });
 
-  const previewPath = $('textarea#broadcast_message_message').data('preview-path');
+  const previewPath = $('textarea#broadcast_message_message').data('previewPath');
 
   $('textarea#broadcast_message_message').on('input', _.debounce(function onMessageInput() {
     const message = $(this).val();
diff --git a/app/assets/javascripts/pages/projects/project.js b/app/assets/javascripts/pages/projects/project.js
index 863dac0d20e..6e48d207571 100644
--- a/app/assets/javascripts/pages/projects/project.js
+++ b/app/assets/javascripts/pages/projects/project.js
@@ -71,7 +71,7 @@ export default class Project {
       selected = $dropdown.data('selected');
       return $dropdown.glDropdown({
         data(term, callback) {
-          axios.get($dropdown.data('refs-url'), {
+          axios.get($dropdown.data('refsUrl'), {
             params: {
               ref: $dropdown.data('ref'),
               search: term,
@@ -84,8 +84,8 @@ export default class Project {
         filterable: true,
         filterRemote: true,
         filterByText: true,
-        inputFieldName: $dropdown.data('input-field-name'),
-        fieldName: $dropdown.data('field-name'),
+        inputFieldName: $dropdown.data('inputFieldName'),
+        fieldName: $dropdown.data('fieldName'),
         renderRow: function(ref) {
           var li = refListItem.cloneNode(false);
 
diff --git a/app/assets/javascripts/pages/search/show/search.js b/app/assets/javascripts/pages/search/show/search.js
index dc621bc87c0..cf44e291199 100644
--- a/app/assets/javascripts/pages/search/show/search.js
+++ b/app/assets/javascripts/pages/search/show/search.js
@@ -9,7 +9,7 @@ export default class Search {
     this.searchInput = '.js-search-input';
     this.searchClear = '.js-search-clear';
 
-    this.groupId = $groupDropdown.data('group-id');
+    this.groupId = $groupDropdown.data('groupId');
     this.eventListeners();
 
     $groupDropdown.glDropdown({
@@ -36,7 +36,7 @@ export default class Search {
         return obj.full_name;
       },
       toggleLabel(obj) {
-        return `${($groupDropdown.data('default-label'))} ${obj.full_name}`;
+        return `${($groupDropdown.data('defaultLabel'))} ${obj.full_name}`;
       },
       clicked: () => Search.submitSearch(),
     });
@@ -69,7 +69,7 @@ export default class Search {
         return obj.name_with_namespace;
       },
       toggleLabel(obj) {
-        return `${($projectDropdown.data('default-label'))} ${obj.name_with_namespace}`;
+        return `${($projectDropdown.data('defaultLabel'))} ${obj.name_with_namespace}`;
       },
       clicked: () => Search.submitSearch(),
     });
diff --git a/app/assets/javascripts/project_select.js b/app/assets/javascripts/project_select.js
index 07a49d1506c..412aca7bfed 100644
--- a/app/assets/javascripts/project_select.js
+++ b/app/assets/javascripts/project_select.js
@@ -5,13 +5,13 @@ import ProjectSelectComboButton from './project_select_combo_button';
 export default function projectSelect() {
   $('.ajax-project-select').each(function(i, select) {
     var placeholder;
-    const simpleFilter = $(select).data('simple-filter') || false;
-    this.groupId = $(select).data('group-id');
-    this.includeGroups = $(select).data('include-groups');
-    this.allProjects = $(select).data('all-projects') || false;
-    this.orderBy = $(select).data('order-by') || 'id';
-    this.withIssuesEnabled = $(select).data('with-issues-enabled');
-    this.withMergeRequestsEnabled = $(select).data('with-merge-requests-enabled');
+    const simpleFilter = $(select).data('simpleFilter') || false;
+    this.groupId = $(select).data('groupId');
+    this.includeGroups = $(select).data('includeGroups');
+    this.allProjects = $(select).data('allProjects') || false;
+    this.orderBy = $(select).data('orderBy') || 'id';
+    this.withIssuesEnabled = $(select).data('withIssuesEnabled');
+    this.withMergeRequestsEnabled = $(select).data('withMergeRequestsEnabled');
 
     placeholder = "Search for project";
     if (this.includeGroups) {
diff --git a/app/assets/javascripts/prometheus_metrics/prometheus_metrics.js b/app/assets/javascripts/prometheus_metrics/prometheus_metrics.js
index 59ad5b45855..e8126ac573d 100644
--- a/app/assets/javascripts/prometheus_metrics/prometheus_metrics.js
+++ b/app/assets/javascripts/prometheus_metrics/prometheus_metrics.js
@@ -19,7 +19,7 @@ export default class PrometheusMetrics {
     this.$missingEnvVarMetricCount = this.$missingEnvVarPanel.find('.js-env-var-count');
     this.$missingEnvVarMetricsList = this.$missingEnvVarPanel.find('.js-missing-var-metrics-list');
 
-    this.activeMetricsEndpoint = this.$monitoredMetricsPanel.data('active-metrics');
+    this.activeMetricsEndpoint = this.$monitoredMetricsPanel.data('activeMetrics');
 
     this.$panelToggle.on('click', e => this.handlePanelToggle(e));
   }
diff --git a/app/assets/javascripts/protected_branches/protected_branch_access_dropdown.js b/app/assets/javascripts/protected_branches/protected_branch_access_dropdown.js
index 38b1406a99f..40a873833e1 100644
--- a/app/assets/javascripts/protected_branches/protected_branch_access_dropdown.js
+++ b/app/assets/javascripts/protected_branches/protected_branch_access_dropdown.js
@@ -9,8 +9,8 @@ export default class ProtectedBranchAccessDropdown {
     $dropdown.glDropdown({
       data,
       selectable: true,
-      inputId: $dropdown.data('input-id'),
-      fieldName: $dropdown.data('field-name'),
+      inputId: $dropdown.data('inputId'),
+      fieldName: $dropdown.data('fieldName'),
       toggleLabel(item, $el) {
         if ($el.is('.is-active')) {
           return item.text;
diff --git a/app/assets/javascripts/protected_branches/protected_branch_create.js b/app/assets/javascripts/protected_branches/protected_branch_create.js
index 2948baeab11..8fc87633e18 100644
--- a/app/assets/javascripts/protected_branches/protected_branch_create.js
+++ b/app/assets/javascripts/protected_branches/protected_branch_create.js
@@ -59,7 +59,7 @@ export default class ProtectedBranchCreate {
     );
 
     this.savePreviousSelection($allowedToMergeInput.val(), $allowedToPushInput.val());
-    this.$form.find('input[type="submit"]').attr('disabled', completedForm);
+    this.$form.find('input[type="submit"]').prop('disabled', completedForm);
   }
 
   static getProtectedBranches(term, callback) {
diff --git a/app/assets/javascripts/protected_branches/protected_branch_edit.js b/app/assets/javascripts/protected_branches/protected_branch_edit.js
index b51b3e9a6ff..54560d08ad7 100644
--- a/app/assets/javascripts/protected_branches/protected_branch_edit.js
+++ b/app/assets/javascripts/protected_branches/protected_branch_edit.js
@@ -41,11 +41,11 @@ export default class ProtectedBranchEdit {
     axios.patch(this.$wrap.data('url'), {
       protected_branch: {
         merge_access_levels_attributes: [{
-          id: this.$allowedToMergeDropdown.data('access-level-id'),
+          id: this.$allowedToMergeDropdown.data('accessLevelId'),
           access_level: $allowedToMergeInput.val(),
         }],
         push_access_levels_attributes: [{
-          id: this.$allowedToPushDropdown.data('access-level-id'),
+          id: this.$allowedToPushDropdown.data('accessLevelId'),
           access_level: $allowedToPushInput.val(),
         }],
       },
diff --git a/app/assets/javascripts/protected_tags/protected_tag_access_dropdown.js b/app/assets/javascripts/protected_tags/protected_tag_access_dropdown.js
index d4c9a91a74a..b803da798d5 100644
--- a/app/assets/javascripts/protected_tags/protected_tag_access_dropdown.js
+++ b/app/assets/javascripts/protected_tags/protected_tag_access_dropdown.js
@@ -9,8 +9,8 @@ export default class ProtectedTagAccessDropdown {
     this.options.$dropdown.glDropdown({
       data: this.options.data,
       selectable: true,
-      inputId: this.options.$dropdown.data('input-id'),
-      fieldName: this.options.$dropdown.data('field-name'),
+      inputId: this.options.$dropdown.data('inputId'),
+      fieldName: this.options.$dropdown.data('fieldName'),
       toggleLabel(item, $el) {
         if ($el.is('.is-active')) {
           return item.text;
diff --git a/app/assets/javascripts/protected_tags/protected_tag_create.js b/app/assets/javascripts/protected_tags/protected_tag_create.js
index d1e4a75c17b..2f94ffe2507 100644
--- a/app/assets/javascripts/protected_tags/protected_tag_create.js
+++ b/app/assets/javascripts/protected_tags/protected_tag_create.js
@@ -39,7 +39,7 @@ export default class ProtectedTagCreate {
     const $tagInput = this.$form.find('input[name="protected_tag[name]"]');
     const $allowedToCreateInput = this.$form.find('#create_access_levels_attributes');
 
-    this.$form.find('input[type="submit"]').attr('disabled', !($tagInput.val() && $allowedToCreateInput.length));
+    this.$form.find('input[type="submit"]').prop('disabled', !($tagInput.val() && $allowedToCreateInput.length));
   }
 
   static getProtectedTags(term, callback) {
diff --git a/app/assets/javascripts/protected_tags/protected_tag_edit.js b/app/assets/javascripts/protected_tags/protected_tag_edit.js
index 21a258cf93c..8687b2a4044 100644
--- a/app/assets/javascripts/protected_tags/protected_tag_edit.js
+++ b/app/assets/javascripts/protected_tags/protected_tag_edit.js
@@ -31,7 +31,7 @@ export default class ProtectedTagEdit {
     axios.patch(this.$wrap.data('url'), {
       protected_tag: {
         create_access_levels_attributes: [{
-          id: this.$allowedToCreateDropdownButton.data('access-level-id'),
+          id: this.$allowedToCreateDropdownButton.data('accessLevelId'),
           access_level: $allowedToCreateInput.val(),
         }],
       },
diff --git a/app/assets/javascripts/ref_select_dropdown.js b/app/assets/javascripts/ref_select_dropdown.js
index 65e4101352c..56c25a35e6d 100644
--- a/app/assets/javascripts/ref_select_dropdown.js
+++ b/app/assets/javascripts/ref_select_dropdown.js
@@ -6,7 +6,7 @@ class RefSelectDropdown {
       filterable: true,
       filterByText: true,
       remote: false,
-      fieldName: $dropdownButton.data('field-name'),
+      fieldName: $dropdownButton.data('fieldName'),
       filterInput: 'input[type="search"]',
       selectable: true,
       isSelectable(branch, $el) {
@@ -24,7 +24,7 @@ class RefSelectDropdown {
     });
 
     const $dropdownContainer = $dropdownButton.closest('.dropdown');
-    const $fieldInput = $(`input[name="${$dropdownButton.data('field-name')}"]`, $dropdownContainer);
+    const $fieldInput = $(`input[name="${$dropdownButton.data('fieldName')}"]`, $dropdownContainer);
     const $filterInput = $('input[type="search"]', $dropdownContainer);
 
     $filterInput.on('keyup', (e) => {
diff --git a/app/assets/javascripts/right_sidebar.js b/app/assets/javascripts/right_sidebar.js
index 01c3be5411f..8d3cc849f81 100644
--- a/app/assets/javascripts/right_sidebar.js
+++ b/app/assets/javascripts/right_sidebar.js
@@ -76,8 +76,8 @@ Sidebar.prototype.toggleTodo = function(e) {
   $('.js-issuable-todo').disable().addClass('is-loading');
 
   axios[ajaxType](url, {
-    issuable_id: $this.data('issuable-id'),
-    issuable_type: $this.data('issuable-type'),
+    issuable_id: $this.data('issuableId'),
+    issuable_type: $this.data('issuableType'),
   }).then(({ data }) => {
     this.todoUpdateDone(data);
   }).catch(() => flash(`There was an error ${ajaxType === 'post' ? 'adding a' : 'deleting the'} todo.`));
@@ -96,18 +96,18 @@ Sidebar.prototype.todoUpdateDone = function(data) {
 
     $el.removeClass('is-loading')
       .enable()
-      .attr('aria-label', $el.data(`${attrPrefix}-text`))
+      .attr('aria-label', $el.data(`${attrPrefix}Text`))
       .attr('data-delete-path', deletePath)
-      .attr('title', $el.data(`${attrPrefix}-text`));
+      .attr('title', $el.data(`${attrPrefix}Text`));
 
     if ($el.hasClass('has-tooltip')) {
       $el.tooltip('fixTitle');
     }
 
-    if ($el.data(`${attrPrefix}-icon`)) {
-      $elText.html($el.data(`${attrPrefix}-icon`));
+    if ($el.data(`${attrPrefix}Icon`)) {
+      $elText.html($el.data(`${attrPrefix}Icon`));
     } else {
-      $elText.text($el.data(`${attrPrefix}-text`));
+      $elText.text($el.data(`${attrPrefix}Text`));
     }
   });
 };
diff --git a/app/assets/javascripts/search_autocomplete.js b/app/assets/javascripts/search_autocomplete.js
index 8f4a8704c3b..78815422d5f 100644
--- a/app/assets/javascripts/search_autocomplete.js
+++ b/app/assets/javascripts/search_autocomplete.js
@@ -25,32 +25,32 @@ function setSearchOptions() {
   if ($projectOptionsDataEl.length) {
     gl.projectOptions = gl.projectOptions || {};
 
-    var projectPath = $projectOptionsDataEl.data('project-path');
+    var projectPath = $projectOptionsDataEl.data('projectPath');
 
     gl.projectOptions[projectPath] = {
       name: $projectOptionsDataEl.data('name'),
-      issuesPath: $projectOptionsDataEl.data('issues-path'),
-      issuesDisabled: $projectOptionsDataEl.data('issues-disabled'),
-      mrPath: $projectOptionsDataEl.data('mr-path'),
+      issuesPath: $projectOptionsDataEl.data('issuesPath'),
+      issuesDisabled: $projectOptionsDataEl.data('issuesDisabled'),
+      mrPath: $projectOptionsDataEl.data('mrPath'),
     };
   }
 
   if ($groupOptionsDataEl.length) {
     gl.groupOptions = gl.groupOptions || {};
 
-    var groupPath = $groupOptionsDataEl.data('group-path');
+    var groupPath = $groupOptionsDataEl.data('groupPath');
 
     gl.groupOptions[groupPath] = {
       name: $groupOptionsDataEl.data('name'),
-      issuesPath: $groupOptionsDataEl.data('issues-path'),
-      mrPath: $groupOptionsDataEl.data('mr-path'),
+      issuesPath: $groupOptionsDataEl.data('issuesPath'),
+      mrPath: $groupOptionsDataEl.data('mrPath'),
     };
   }
 
   if ($dashboardOptionsDataEl.length) {
     gl.dashboardOptions = {
-      issuesPath: $dashboardOptionsDataEl.data('issues-path'),
-      mrPath: $dashboardOptionsDataEl.data('mr-path'),
+      issuesPath: $dashboardOptionsDataEl.data('issuesPath'),
+      mrPath: $dashboardOptionsDataEl.data('mrPath'),
     };
   }
 }
@@ -61,9 +61,9 @@ export default class SearchAutocomplete {
     this.bindEventContext();
     this.wrap = wrap || $('.search');
     this.optsEl = optsEl || this.wrap.find('.search-autocomplete-opts');
-    this.autocompletePath = autocompletePath || this.optsEl.data('autocomplete-path');
-    this.projectId = projectId || (this.optsEl.data('autocomplete-project-id') || '');
-    this.projectRef = projectRef || (this.optsEl.data('autocomplete-project-ref') || '');
+    this.autocompletePath = autocompletePath || this.optsEl.data('autocompletePath');
+    this.projectId = projectId || (this.optsEl.data('autocompleteProjectId') || '');
+    this.projectRef = projectRef || (this.optsEl.data('autocompleteProjectRef') || '');
     this.dropdown = this.wrap.find('.dropdown');
     this.dropdownToggle = this.wrap.find('.js-dropdown-search-toggle');
     this.dropdownContent = this.dropdown.find('.dropdown-content');
diff --git a/app/assets/javascripts/sidebar/lib/sidebar_move_issue.js b/app/assets/javascripts/sidebar/lib/sidebar_move_issue.js
index 977dd83a7ea..b10e2cc60ef 100644
--- a/app/assets/javascripts/sidebar/lib/sidebar_move_issue.js
+++ b/app/assets/javascripts/sidebar/lib/sidebar_move_issue.js
@@ -50,7 +50,7 @@ class SidebarMoveIssue {
         const selectedProjectId = options.isMarking ? project.id : 0;
         this.mediator.setMoveToProjectId(selectedProjectId);
 
-        this.$confirmButton.attr('disabled', !isValidProjectId(selectedProjectId));
+        this.$confirmButton.prop('disabled', !isValidProjectId(selectedProjectId));
       },
     });
   }
diff --git a/app/assets/javascripts/single_file_diff.js b/app/assets/javascripts/single_file_diff.js
index 0cd6e69811a..6142ce6c6a3 100644
--- a/app/assets/javascripts/single_file_diff.js
+++ b/app/assets/javascripts/single_file_diff.js
@@ -18,7 +18,7 @@ export default class SingleFileDiff {
     this.toggleDiff = this.toggleDiff.bind(this);
     this.content = $('.diff-content', this.file);
     this.$toggleIcon = $('.diff-toggle-caret', this.file);
-    this.diffForPath = this.content.find('[data-diff-for-path]').data('diff-for-path');
+    this.diffForPath = this.content.find('[data-diff-for-path]').data('diffForPath');
     this.isOpen = !this.diffForPath;
     if (this.diffForPath) {
       this.collapsedContent = this.content;
diff --git a/app/assets/javascripts/star.js b/app/assets/javascripts/star.js
index d5606e153f6..3deb629d5f2 100644
--- a/app/assets/javascripts/star.js
+++ b/app/assets/javascripts/star.js
@@ -1,17 +1,20 @@
 import Flash from './flash';
 import { __, s__ } from './locale';
 import { spriteIcon } from './lib/utils/common_utils';
+import axios from './lib/utils/axios_utils';
 
 export default class Star {
   constructor() {
-    $('.project-home-panel .toggle-star')
-      .on('ajax:success', function handleSuccess(e, data) {
-        const $this = $(this);
-        const $starSpan = $this.find('span');
-        const $startIcon = $this.find('svg');
+    $('.project-home-panel .toggle-star').on('click', function toggleStarClickCallback() {
+      const $this = $(this);
+      const $starSpan = $this.find('span');
+      const $startIcon = $this.find('svg');
 
-        function toggleStar(isStarred) {
+      axios.post($this.data('endpoint'))
+        .then(({ data }) => {
+          const isStarred = $starSpan.hasClass('starred');
           $this.parent().find('.star-count').text(data.star_count);
+
           if (isStarred) {
             $starSpan.removeClass('starred').text(s__('StarProject|Star'));
             $startIcon.remove();
@@ -21,12 +24,8 @@ export default class Star {
             $startIcon.remove();
             $this.prepend(spriteIcon('star'));
           }
-        }
-
-        toggleStar($starSpan.hasClass('starred'));
-      })
-      .on('ajax:error', () => {
-        Flash('Star toggle failed. Try again later.', 'alert');
-      });
+        })
+        .catch(() => Flash('Star toggle failed. Try again later.'));
+    });
   }
 }
diff --git a/app/assets/javascripts/subscription_select.js b/app/assets/javascripts/subscription_select.js
index 1ab4c2229ca..3ed064f87a9 100644
--- a/app/assets/javascripts/subscription_select.js
+++ b/app/assets/javascripts/subscription_select.js
@@ -1,6 +1,6 @@
 export default function subscriptionSelect() {
   $('.js-subscription-event').each((i, element) => {
-    const fieldName = $(element).data('field-name');
+    const fieldName = $(element).data('fieldName');
 
     return $(element).glDropdown({
       selectable: true,
diff --git a/app/assets/javascripts/task_list.js b/app/assets/javascripts/task_list.js
index 129a551cbcd..8fa78b636f8 100644
--- a/app/assets/javascripts/task_list.js
+++ b/app/assets/javascripts/task_list.js
@@ -40,7 +40,7 @@ export default class TaskList {
       [this.fieldName]: $target.val(),
     };
 
-    return axios.patch($target.data('update-url') || $('form.js-issuable-update').attr('action'), patchData)
+    return axios.patch($target.data('updateUrl') || $('form.js-issuable-update').attr('action'), patchData)
       .then(({ data }) => this.onSuccess(data))
       .catch(err => this.onError(err));
   }
diff --git a/app/assets/javascripts/templates/issuable_template_selector.js b/app/assets/javascripts/templates/issuable_template_selector.js
index 4cc1c96b870..b5b64f44a11 100644
--- a/app/assets/javascripts/templates/issuable_template_selector.js
+++ b/app/assets/javascripts/templates/issuable_template_selector.js
@@ -6,9 +6,9 @@ import TemplateSelector from '../blob/template_selector';
 export default class IssuableTemplateSelector extends TemplateSelector {
   constructor(...args) {
     super(...args);
-    this.projectPath = this.dropdown.data('project-path');
-    this.namespacePath = this.dropdown.data('namespace-path');
-    this.issuableType = this.$dropdownContainer.data('issuable-type');
+    this.projectPath = this.dropdown.data('projectPath');
+    this.namespacePath = this.dropdown.data('namespacePath');
+    this.issuableType = this.$dropdownContainer.data('issuableType');
     this.titleInput = $(`#${this.issuableType}_title`);
 
     const initialQuery = {
diff --git a/app/assets/javascripts/user_callout.js b/app/assets/javascripts/user_callout.js
index a45b22f3084..a783122d500 100644
--- a/app/assets/javascripts/user_callout.js
+++ b/app/assets/javascripts/user_callout.js
@@ -22,7 +22,7 @@ export default class UserCallout {
     const $currentTarget = $(e.currentTarget);
 
     if (this.options.setCalloutPerProject) {
-      Cookies.set(this.cookieName, 'true', { expires: 365, path: this.userCalloutBody.data('project-path') });
+      Cookies.set(this.cookieName, 'true', { expires: 365, path: this.userCalloutBody.data('projectPath') });
     } else {
       Cookies.set(this.cookieName, 'true', { expires: 365 });
     }
diff --git a/app/assets/javascripts/users_select.js b/app/assets/javascripts/users_select.js
index eaed81cf79e..8958534689c 100644
--- a/app/assets/javascripts/users_select.js
+++ b/app/assets/javascripts/users_select.js
@@ -34,23 +34,23 @@ function UsersSelect(currentUser, els, options = {}) {
       var options = {};
       var $block, $collapsedSidebar, $dropdown, $loading, $selectbox, $value, abilityName, assignTo, assigneeTemplate, collapsedAssigneeTemplate, defaultLabel, defaultNullUser, firstUser, issueURL, selectedId, selectedIdDefault, showAnyUser, showNullUser, showMenuAbove;
       $dropdown = $(dropdown);
-      options.projectId = $dropdown.data('project-id');
-      options.groupId = $dropdown.data('group-id');
-      options.showCurrentUser = $dropdown.data('current-user');
-      options.todoFilter = $dropdown.data('todo-filter');
-      options.todoStateFilter = $dropdown.data('todo-state-filter');
-      options.perPage = $dropdown.data('per-page');
-      showNullUser = $dropdown.data('null-user');
-      defaultNullUser = $dropdown.data('null-user-default');
+      options.projectId = $dropdown.data('projectId');
+      options.groupId = $dropdown.data('groupId');
+      options.showCurrentUser = $dropdown.data('currentUser');
+      options.todoFilter = $dropdown.data('todoFilter');
+      options.todoStateFilter = $dropdown.data('todoStateFilter');
+      options.perPage = $dropdown.data('perPage');
+      showNullUser = $dropdown.data('nullUser');
+      defaultNullUser = $dropdown.data('nullUserDefault');
       showMenuAbove = $dropdown.data('showMenuAbove');
-      showAnyUser = $dropdown.data('any-user');
-      firstUser = $dropdown.data('first-user');
-      options.authorId = $dropdown.data('author-id');
-      defaultLabel = $dropdown.data('default-label');
+      showAnyUser = $dropdown.data('anyUser');
+      firstUser = $dropdown.data('firstUser');
+      options.authorId = $dropdown.data('authorId');
+      defaultLabel = $dropdown.data('defaultLabel');
       issueURL = $dropdown.data('issueUpdate');
       $selectbox = $dropdown.closest('.selectbox');
       $block = $selectbox.closest('.block');
-      abilityName = $dropdown.data('ability-name');
+      abilityName = $dropdown.data('abilityName');
       $value = $block.find('.value');
       $collapsedSidebar = $block.find('.sidebar-collapsed-user');
       $loading = $block.find('.block-loading').fadeOut();
@@ -63,7 +63,7 @@ function UsersSelect(currentUser, els, options = {}) {
 
       const assignYourself = function () {
         const unassignedSelected = $dropdown.closest('.selectbox')
-          .find(`input[name='${$dropdown.data('field-name')}'][value=0]`);
+          .find(`input[name='${$dropdown.data('fieldName')}'][value=0]`);
 
         if (unassignedSelected) {
           unassignedSelected.remove();
@@ -72,7 +72,7 @@ function UsersSelect(currentUser, els, options = {}) {
         // Save current selected user to the DOM
         const input = document.createElement('input');
         input.type = 'hidden';
-        input.name = $dropdown.data('field-name');
+        input.name = $dropdown.data('fieldName');
 
         const currentUserInfo = $dropdown.data('currentUserInfo');
 
@@ -96,7 +96,7 @@ function UsersSelect(currentUser, els, options = {}) {
 
       const getSelectedUserInputs = function() {
         return $selectbox
-          .find(`input[name="${$dropdown.data('field-name')}"]`);
+          .find(`input[name="${$dropdown.data('fieldName')}"]`);
       };
 
       const getSelected = function() {
@@ -106,14 +106,14 @@ function UsersSelect(currentUser, els, options = {}) {
       };
 
       const checkMaxSelect = function() {
-        const maxSelect = $dropdown.data('max-select');
+        const maxSelect = $dropdown.data('maxSelect');
         if (maxSelect) {
           const selected = getSelected();
 
           if (selected.length > maxSelect) {
             const firstSelectedId = selected[0];
             const firstSelected = $dropdown.closest('.selectbox')
-              .find(`input[name='${$dropdown.data('field-name')}'][value=${firstSelectedId}]`);
+              .find(`input[name='${$dropdown.data('fieldName')}'][value=${firstSelectedId}]`);
 
             firstSelected.remove();
             emitSidebarEvent('sidebar.removeAssignee', {
@@ -158,7 +158,7 @@ function UsersSelect(currentUser, els, options = {}) {
           const currentUserInfo = $dropdown.data('currentUserInfo');
           $dropdown.find('.dropdown-toggle-text').text(getMultiSelectDropdownTitle(currentUserInfo)).removeClass('is-default');
         } else {
-          const $input = $(`input[name="${$dropdown.data('field-name')}"]`);
+          const $input = $(`input[name="${$dropdown.data('fieldName')}"]`);
           $input.val(gon.current_user_id);
           selectedId = $input.val();
           $dropdown.find('.dropdown-toggle-text').text(gon.current_user_fullname).removeClass('is-default');
@@ -293,10 +293,10 @@ function UsersSelect(currentUser, els, options = {}) {
               const selected = getSelected().filter(i => i !== 0);
 
               if (selected.length > 0) {
-                if ($dropdown.data('dropdown-header')) {
+                if ($dropdown.data('dropdownHeader')) {
                   showDivider += 1;
                   users.splice(showDivider, 0, {
-                    header: $dropdown.data('dropdown-header'),
+                    header: $dropdown.data('dropdownHeader'),
                   });
                 }
 
@@ -327,7 +327,7 @@ function UsersSelect(currentUser, els, options = {}) {
           fields: ['name', 'username']
         },
         selectable: true,
-        fieldName: $dropdown.data('field-name'),
+        fieldName: $dropdown.data('fieldName'),
         toggleLabel: function(selected, el, glDropdown) {
           const inputValue = glDropdown.filterInput.val();
 
@@ -362,7 +362,7 @@ function UsersSelect(currentUser, els, options = {}) {
             emitSidebarEvent('sidebar.saveAssignees');
           }
 
-          if (!$dropdown.data('always-show-selectbox')) {
+          if (!$dropdown.data('alwaysShowSelectbox')) {
             $selectbox.hide();
 
             // Recalculate where .value is because vue might have changed it
@@ -373,7 +373,7 @@ function UsersSelect(currentUser, els, options = {}) {
           }
         },
         multiSelect: $dropdown.hasClass('js-multiselect'),
-        inputMeta: $dropdown.data('input-meta'),
+        inputMeta: $dropdown.data('inputMeta'),
         clicked: function(options) {
           const { $el, e, isMarking } = options;
           const user = options.selectedObj;
@@ -381,7 +381,7 @@ function UsersSelect(currentUser, els, options = {}) {
           if ($dropdown.hasClass('js-multiselect')) {
             const isActive = $el.hasClass('is-active');
             const previouslySelected = $dropdown.closest('.selectbox')
-                .find("input[name='" + ($dropdown.data('field-name')) + "'][value!=0]");
+                .find("input[name='" + ($dropdown.data('fieldName')) + "'][value!=0]");
 
             // Enables support for limiting the number of users selected
             // Automatically removes the first on the list if more users are selected
@@ -400,7 +400,7 @@ function UsersSelect(currentUser, els, options = {}) {
 
               // Remove unassigned selection (if it was previously selected)
               const unassignedSelected = $dropdown.closest('.selectbox')
-                .find("input[name='" + ($dropdown.data('field-name')) + "'][value=0]");
+                .find("input[name='" + ($dropdown.data('fieldName')) + "'][value=0]");
 
               if (unassignedSelected) {
                 unassignedSelected.remove();
@@ -408,7 +408,7 @@ function UsersSelect(currentUser, els, options = {}) {
             } else {
               if (previouslySelected.length === 0) {
               // Select unassigned because there is no more selected users
-                this.addInput($dropdown.data('field-name'), 0, {});
+                this.addInput($dropdown.data('fieldName'), 0, {});
               }
 
               // User unselected
@@ -440,7 +440,7 @@ function UsersSelect(currentUser, els, options = {}) {
             return;
           }
           if ($el.closest('.add-issues-modal').length) {
-            gl.issueBoards.ModalStore.store.filter[$dropdown.data('field-name')] = user.id;
+            gl.issueBoards.ModalStore.store.filter[$dropdown.data('fieldName')] = user.id;
           } else if (handleClick) {
             e.preventDefault();
             handleClick(user, isMarking);
@@ -449,15 +449,15 @@ function UsersSelect(currentUser, els, options = {}) {
           } else if ($dropdown.hasClass('js-filter-submit')) {
             return $dropdown.closest('form').submit();
           } else if (!$dropdown.hasClass('js-multiselect')) {
-            selected = $dropdown.closest('.selectbox').find("input[name='" + ($dropdown.data('field-name')) + "']").val();
+            selected = $dropdown.closest('.selectbox').find("input[name='" + ($dropdown.data('fieldName')) + "']").val();
             return assignTo(selected);
           }
 
           // Automatically close dropdown after assignee is selected
           // since CE has no multiple assignees
           // EE does not have a max-select
-          if ($dropdown.data('max-select') &&
-              getSelected().length === $dropdown.data('max-select')) {
+          if ($dropdown.data('maxSelect') &&
+              getSelected().length === $dropdown.data('maxSelect')) {
             // Close the dropdown
             $dropdown.dropdown('toggle');
           }
@@ -469,7 +469,7 @@ function UsersSelect(currentUser, els, options = {}) {
           const $el = $(e.currentTarget);
           const selected = getSelected();
           if ($dropdown.hasClass('js-issue-board-sidebar') && selected.length === 0) {
-            this.addInput($dropdown.data('field-name'), 0, {});
+            this.addInput($dropdown.data('fieldName'), 0, {});
           }
           $el.find('.is-active').removeClass('is-active');
 
@@ -485,7 +485,7 @@ function UsersSelect(currentUser, els, options = {}) {
             highlightSelected(selectedId);
           }
         },
-        updateLabel: $dropdown.data('dropdown-title'),
+        updateLabel: $dropdown.data('dropdownTitle'),
         renderRow: function(user) {
           var avatar, img, listClosingTags, listWithName, listWithUserName, username;
           username = user.username ? "@" + user.username : "";
@@ -533,15 +533,15 @@ function UsersSelect(currentUser, els, options = {}) {
       var firstUser, showAnyUser, showEmailUser, showNullUser;
       var options = {};
       options.skipLdap = $(select).hasClass('skip_ldap');
-      options.projectId = $(select).data('project-id');
-      options.groupId = $(select).data('group-id');
-      options.showCurrentUser = $(select).data('current-user');
-      options.authorId = $(select).data('author-id');
-      options.skipUsers = $(select).data('skip-users');
-      showNullUser = $(select).data('null-user');
-      showAnyUser = $(select).data('any-user');
-      showEmailUser = $(select).data('email-user');
-      firstUser = $(select).data('first-user');
+      options.projectId = $(select).data('projectId');
+      options.groupId = $(select).data('groupId');
+      options.showCurrentUser = $(select).data('currentUser');
+      options.authorId = $(select).data('authorId');
+      options.skipUsers = $(select).data('skipUsers');
+      showNullUser = $(select).data('nullUser');
+      showAnyUser = $(select).data('anyUser');
+      showEmailUser = $(select).data('emailUser');
+      firstUser = $(select).data('firstUser');
       return $(select).select2({
         placeholder: "Search for a user",
         multiple: $(select).hasClass('multiselect'),
diff --git a/app/assets/javascripts/vue_shared/components/markdown/field.vue b/app/assets/javascripts/vue_shared/components/markdown/field.vue
index 1371dca0c35..d2e968a8419 100644
--- a/app/assets/javascripts/vue_shared/components/markdown/field.vue
+++ b/app/assets/javascripts/vue_shared/components/markdown/field.vue
@@ -64,7 +64,7 @@
       return new GLForm($(this.$refs['gl-form']), this.enableAutocomplete);
     },
     beforeDestroy() {
-      const glForm = $(this.$refs['gl-form']).data('gl-form');
+      const glForm = $(this.$refs['gl-form']).data('glForm');
       if (glForm) {
         glForm.destroy();
       }